... well as GB, JIS, DIN and AISI international industrial standard.(4) Size tolerance within + 0.001mm, axiality within 0.002mm, ... the ability to manufacture all kinds of precision non-standard components; these components are commonly used in precision punch ... as GB, JIS, DIN and AISI international industrial standard. Products' precision: size tolerace within .001mm, axiality within 0.002mm, roundness ...