Home / Standards / GB/T 30790.4-2014 GB/T 30790.4-2014 Active Paints and varnishes―Corrosion protection of steel structures by protective paint systems―Part 4: Types of surface and surface preparation 色漆和清漆 防护涂料体系对钢结构的防腐蚀保护 第4部分：表面类型和表面处理 Standard Type GBT ICS 87.020 CCS G50 Status 现行 Issue Date 2014-07-08 Implementation 2014-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A