Home / Standards / GB/T 20852-2007 GB/T 20852-2007 Active Corrosion of metals and alloys - guidelines for selection of protection methods against atmospheric corrosion 金属和合金的腐蚀 大气腐蚀防护方法的选择导则 Standard Type GBT ICS 77.060 CCS H25 Status 现行 Issue Date 2007-03-09 Implementation 2007-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会