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Cast Iron Straight Edge

SpecStraightness &flatness of working surfacesParallelism between working surfaces
Precision um
0 class1 class2 class0 class1 class2 class
500*3536124.54918
750*40481561225
1000*50510207.51530
1250*50
1224
1836
1600*70
1530
2040
2000*80
1836
2754
2500*80

44

65
3000*100

52

78
3500*100

60

90
4000*100

68

100

Standard :JB/T7977-99 

Material : HT200-250

Temperature:  20±5℃

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