Home / Standards / GB/T 32251-2015 GB/T 32251-2015 Abolished Investment casting process—Pollutants control 熔模铸造工艺 污染物的控制 Standard Type GBT ICS 77.140.80 CCS J31 Status 废止 Issue Date 2015-12-10 Implementation 2016-07-01 Responsible Dept 国家标准委 Drafting Unit N/A