Home / Standards / GB 9448-1999 GB 9448-1999 Active Safety in welding and cutting 焊接与切割安全 Standard Type GB ICS 25.160.01 CCS J33 Status 现行 Issue Date 1999-09-03 Implementation 2000-05-01 Responsible Dept 工业和信息化部 Drafting Unit 工业和信息化部