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仕様
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規格
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JIS B 1180 付属書
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材質
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鋼、合金鋼
ステンレス鋼
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強度区分
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鋼、合金鋼
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4.8 8.8
10.9 12.9
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ステンレス鋼
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A2-50
A4-50
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d
(ねじの
呼び)
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P(ピッチ)
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Φds
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k(許容差)
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S(許容差)
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e
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並目
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細目
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基準
寸法
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上
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中
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並
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基準
寸法
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上
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中
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並
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基準
寸法
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上
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中
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並
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約
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M 3
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0.50
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3
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0
-0.1
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2
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±0.1
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5.5
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0
-0.2
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6.4
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M 4
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0.70
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4
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2.8
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7
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8.1
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M 5
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0.80
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5
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3.5
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±0.15
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8
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9.2
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M 6
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1.00
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6
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0
-0.2
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+0.6
-0.15
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4
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±0.25
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±0.6
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10
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0
-0.6
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0
-0.6
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11.5
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M 8
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1.25
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1.00
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8
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0
-0.15
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+0.7
-0.2
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5.5
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13
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0
-0.25
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0
-0.7
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0
-0.7
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15
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M10
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1.50
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1.25
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10
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7
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±0.2
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±0.3
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±0.8
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17
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19.6
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M12
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1.75
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1.25
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12
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0
-0.2
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0
-0.25
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+0.9
-0.2
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8
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19
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0
-0.35
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0
-0.8
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0
-0.8
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21.9
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M14
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2.00
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1.50
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14
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9
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22
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25.4
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M16
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2.00
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1.50
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16
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10
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24
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27.7
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M18
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2.50
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1.50
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18
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12
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±0.35
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±0.9
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27
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31.2
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M20
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2.50
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1.50
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20
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0
-0.35
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+0.95
-0.35
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13
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30
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34.6
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M22
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2.50
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1.50
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22
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14
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32
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0
-0.4
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0
-1
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0
-1
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37
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M24
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3.00
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2.00
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24
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15
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36
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41.6
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M27
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3.00
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2.00
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27
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17
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41
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47.3
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M30
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3.50
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2.00
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30
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19
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±0.25
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±0.4
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±1
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46
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53.1
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M33
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3.50
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2.00
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33
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0
-0.25
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0
-0.4
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+1.2
-0.4
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21
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50
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57.7
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M36
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4.00
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3.00
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36
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23
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55
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0
-0.45
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0
-1.2
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0
-1.2
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63.5
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M39
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4.00
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3.00
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39
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25
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60
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69.3
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M42
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4.50
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42
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26
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65
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75
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M45
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4.50
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45
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28
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70
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80.8
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M48
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5.00
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48
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30
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75
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86.5
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M52
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5.00
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52
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0
-0.3
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0
-0.45
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+1.2
-0.7
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33
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±0.3
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±0.5
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±1.5
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80
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92.4
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M56
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5.50
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56
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35
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85
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0
-0.55
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0
-1.4
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98.1
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M60
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5.50
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60
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38
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90
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104
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M64
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6.00
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64
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40
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95
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110
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M68
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6.00
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68
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48
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100
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115
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M72
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6.00
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72
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45
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105
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121
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M76
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6.00
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76
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48
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110
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127
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