GB/T 38821-2020

Active

Hetian Yu—Testing and classification

和田玉 鉴定与分类

Standard Type
GBT
ICS
39.060
CCS
D59
Status
现行
Issue Date
2020-06-02
Implementation
2021-01-01
Responsible Dept
自然资源部（国土）
Drafting Unit
N/A