Home / Standards / GB/T 4157-2006 GB/T 4157-2006 Abolished Laboratory testing of metals for resistance to specific forms of environmental cracking in H2S environments 金属在硫化氢环境中抗特殊形式环境开裂实验室试验 Standard Type GBT ICS 77.060 CCS H25 Status 废止 Issue Date 2006-03-02 Implementation 2006-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A