Cast Iron Angle Plates

-Made accoring to DIN876-II -Special ones made according to drawings.

Made according to Standard JB/T6092-85,material HT200,used to test the perpendicularity and parallelism,and can be used as verfication standard of 90 degree.

Typemm	Perpendicularity betweenadjacent measuringsurface			Flatness and straightnessof measuring surface			Flatness and straightnessof datum surface
	Precision Grade (μm)
	1	2	3	1	2	3	1	2	3
200 × 200	8	16	30	4	8	16	6	12	24
300 × 200	10	20	40	5	10	20	8	16	30
300 × 300	10	20	40	5	10	20	8	16	30
400 × 300	12	24	45	6	12	24	10	20	40
400 × 400	12	24	45	6	12	24	10	20	40
500 × 400		28	50		14	28		24	48
500 × 500		28	50		14	28		24	48
800 × 600		35	60		18	35		28	55