GB/T 131-93

Mechanical drawings — Surface roughness symbols, codes and their indication

机械制图表面粗糙度符号、代号及其注法

Standard Type

GBT

ICS

N/A

CCS

N/A

Status

N/A

Issue Date

N/A

Implementation

N/A

Responsible Dept

N/A

Drafting Unit

N/A