GB/T 18781-2008

Abolished

Cultured pearl grading

珍珠分级

Standard Type
GBT
ICS
39.060;65.150
CCS
Y88
Status
废止
Issue Date
2008-08-19
Implementation
2009-05-01
Responsible Dept
中国轻工业联合会
Drafting Unit
中国轻工业联合会