Home / Standards / GB/T 14234-1993 GB/T 14234-1993 Active Surface roughness for plastic parts 塑料件表面粗糙度 Standard Type GBT ICS 83.140 CCS G31 Status 现行 Issue Date 1993-03-04 Implementation 1993-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A