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C-HI INTERNATIONAL TRADING (HK) CO., LTD.

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Cast Iron Straight Edge

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Cast Iron Straight Edge

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Gray cast iron material.
Working surface finished by hand scraping, it is widly used to test the straightness and flatness of workpiece and equipment installing. Best working temperature 20±5°C.

Specification (mm)	Straightness and Flatness of Working Surface			Parallelism Between Working Surfaces
	Accuracy Grade (μm)
	0	1	2	0	1	2
500×35	3	6	12	4.5	9	18
750×40	4	8	15	6	12	25
1000×50	5	10	20	7.5	15	30
1250×50		12	24		18	36
1600×70		15	30		20	40
2000×80		18	36		27	54
2500×80			44			65
3000×100			52			78
3500×100			60			90
4000×100			68			100

Specification (mm)	Straightness and Flatness of Working Surface			Parallelism Between Working Surfaces
	Accuracy Grade (μm)
	0	1	2	0	1	2
500×35	3	6	12	4.5	9	18
750×40	4	8	15	6	12	25
1000×50	5	10	20	7.5	15	30
1250×50		12	24		18	36
1600×70		15	30		20	40
2000×80		18	36		27	54
2500×80			44			65
3000×100			52			78
3500×100			60			90
4000×100			68			100