Home / Standards / GB/Z 45463-2025 GB/Z 45463-2025 Active Method for porosity measurement of thermally sprayed coatings 热喷涂涂层孔隙率的测定 Standard Type GBZ ICS 25.220.20 CCS A29 Status 现行 Issue Date 2025-03-28 Implementation N/A Responsible Dept 中国机械工业联合会 Drafting Unit N/A