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＞
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＞
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丸ワッシャー(規格表)
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仕様
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規格
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ＪＩＳ Ｂ １２５６ 参考
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材質
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鋼 合金鋼
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ステンレス鋼 真鍮
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呼び
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ＩＳＯ
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ＩＳＯ小型
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ＪＩＳ
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ＪＩＳ小型
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ウィット
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内
径 ｄ |
外
径 Ｄ |
厚
み ｔ |
内
径 ｄ |
外
径 Ｄ |
厚
み ｔ |
内
径 ｄ |
外
径 Ｄ |
厚
み ｔ |
内
径 ｄ |
外
径 Ｄ |
厚
み ｔ |
内
径 ｄ |
外
径 Ｄ |
厚
み ｔ |
||
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Ｍ ３
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3.2
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7
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0.5
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3.2
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6
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0.5
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3.3
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8
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0.5
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3.3
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6
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0.5
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Ｍ ４
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4.3
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9
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0.8
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4.3
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8
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0.8
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4.5
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10
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0.8
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4.5
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8
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0.5
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Ｍ ５
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(3/16)
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5.3
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10
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1
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5.3
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10
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1
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5.5
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12
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0.8
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5.5
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10
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0.8
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5.3
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16
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1.2 1.6
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Ｍ ６
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(1/4)
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6.4
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13
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1.6
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6.4
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12
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1.6
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6.5
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13
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1
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6.5
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12
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0.8
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7
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19
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1.2 1.6
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Ｍ ８
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(5/16)
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8.4
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17
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1.6
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8.4
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16
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1.6
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8.5
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18
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1.6
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8.5
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16
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1.2
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9
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22
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1.6 2.3
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Ｍ１０
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(3/8)
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11
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21
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1.6
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11
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18
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2
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11
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22
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1.6
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11
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18
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1.6
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11
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25
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1.6 2.3
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(7/16)
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12
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24
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2.3
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12
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28
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2.3 3.2
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Ｍ１２
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13
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24
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2.5
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13
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21
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2.5
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13
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26
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2.3
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13
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22
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2.3
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(1/2)
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14
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26
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2.3
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14
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32
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1.6 2.3
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Ｍ１４
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15
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28
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2.5
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15
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24
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2.5
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15
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30
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2.6
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15
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26
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2.3
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Ｍ１６
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(5/8)
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17
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30
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3
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17
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28
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3
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17
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32
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2.6
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17
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30
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2.6
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18
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38
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2.3 3.2
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Ｍ１８
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19
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34
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3
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19
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30
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3
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19
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36
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2.6
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19
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32
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2.6
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Ｍ２０
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(3/4)
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21
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37
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3
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21
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34
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3
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21
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40
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3.2
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21
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36
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2.6
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21
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45
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3.2
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Ｍ２２
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(7/8)
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23
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39
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3
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23
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37
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3
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24
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44
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3.2
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24
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40
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3.2
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24
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50
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3.2
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Ｍ２４
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25
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44
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4
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25
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39
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4
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26
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48
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4
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26
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44
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3.2
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(1")
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27
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52
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4
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28
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57
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3.2
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Ｍ２７
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28
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50
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4
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28
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44
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4
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29
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52
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4
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(1-1/8)
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30
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58
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4.5
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32
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65
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3.2
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Ｍ３０
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31
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56
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4
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31
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50
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4
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32
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58
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4.5
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|
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|
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(1-1/4)
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34
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62
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4.5
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35
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70
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3.2
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Ｍ３３
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34
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60
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5
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35
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62
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4.5
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(1-3/8)
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37
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68
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5
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38
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78
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3.2
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Ｍ３６
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37
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66
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5
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38
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68
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5
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|
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(1-1/2)
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40
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72
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5
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41
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80
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3.2
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Ｍ３９
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40
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72
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6
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41
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72
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5
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Ｍ４２
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(1-5/8)
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43
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78
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7
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44
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78
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6
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|
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Ｍ４５
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(1-3/4)
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46
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85
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7
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47
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82
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6
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|
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|
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Ｍ４８
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(1-7/8)
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50
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92
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8
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|
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50
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88
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6
|
|
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|
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Ｍ５２
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(2")
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54
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98
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8
|
|
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54
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95
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6
|
|
|
|
|
|
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Ｍ５６
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(2-1/4)
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58
|
105
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9
|
|
|
|
60
|
103
|
8
|
|
|
|
|
|
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Ｍ６０
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|
62
|
110
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9
|
|
|
|
|
|
|
|
|
|
|
|
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Ｍ６４
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(2-1/2)
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66
|
115
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9
|
|
|
|
67
|
115
|
8
|
|
|
|
|
|
|
|
Ｍ６８
|
(2-3/4)
|
70
|
120
|
10
|
|
|
|
73
|
125
|
8
|
|
|
|
|
|
|
|
Ｍ７２
|
|
74
|
125
|
10
|
|
|
|
|
|
|
|
|
|
|
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Ｍ７６
|
(3")
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78
|
135
|
10
|
|
|
|
80
|
132
|
8
|
|
|
|
|
|
|
|
Ｍ８０
|
|
82
|
140
|
12
|
|
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