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Marking tolerances for cylindrical pin holes

Cylindrical pin holes in the drawings are generally equipped with drilling hinge, need to mark the tolerance grade or tolerance values and surface roughness requirements.

General cylindrical pin holes are used for tolerances of H7, surface roughness is Ra1.6 or Ra0.8.

Add: TANGHUI INDUSTRIAL PARK, JIAXING ECONOMIC DEVELOPMENT AREA, JIAXING, ZHEJIANG, CHINA
Contact person: Ms. Nancy Yue
Tel:+86-573-82217013
Fax:+86-573-82205021
Phone:+86-13511349505
E-mail:
jxeasy@jxeasy.com