Home / Standards / GB/T 38681-2020 GB/T 38681-2020 Active Seamless corrosion resistant alloy pipes and tubes for industrial furnace 工业炉用耐蚀合金无缝管 Standard Type GBT ICS 77.140.75 CCS H59 Status 现行 Issue Date 2020-03-31 Implementation 2020-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A