The Jingda Tools and Measuring Instruments Co. Ltd which is located in Botou, Hebei province was founded in 1979 with the former name of Jiaohe Foundry. Our main products are precision measuring instruments, including inspection surface plate(both in cast iron and granite materials), angle plate, straight edge, granite squares, machine tools, wrench and other related catalogues. In fact, we can make all kinds of cast-iron products as long as you send us your drawings.
read more Type(mm) Perpendicularity between
adjacent measuring
surface Flatness and straightness
of measuring surface ...
Tpye (mm) Straightness and flatness of
working surface Parallelism between working surface Precision grade ( μm) 00 ...
Type (mm) Squareness between
adjacent measuring surfaces Straightness of measuring
surface Parallelism between
Opposite ...
V slot type I is made of high quality tool steel, V slots of II, III type are made of HT200. Normally, V slots I, II, ...
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