Home / Standards / GB/T 14235.7-1993 GB/T 14235.7-1993 Active Testing method for fluidity of pattern materials in investment casting 熔模铸造模料 流动性测定方法 Standard Type GBT ICS 77.180 CCS J31 Status 现行 Issue Date 1993-03-04 Implementation 1993-12-01 Responsible Dept 国家标准委 Drafting Unit N/A