GB/T 42220-2022

Active

Appraisal for precious metal besetting jades process quality

金镶玉镶嵌工艺质量评价

Standard Type
GBT
ICS
39.060
CCS
Y88
Status
现行
Issue Date
2022-12-30
Implementation
2023-07-01
Responsible Dept
中国轻工业联合会
Drafting Unit
N/A