Home / Standards / GB/T 11420-1989 GB/T 11420-1989 Abolished Measurement of specular gloss of vitreous and porcelain enamels 搪瓷光泽测试方法 Standard Type GBT ICS 25.220.50 CCS Y26 Status 废止 Issue Date 1989-06-08 Implementation 1990-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A