Home / Standards / GB/T 3674-1993 GB/T 3674-1993 Abolished Phthalocyanine blue B 酞菁蓝B Standard Type GBT ICS 87.060.10 CCS G54 Status 废止 Issue Date 1993-12-30 Implementation 1994-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A