GB/T 41951-2022金属和合金的腐蚀建筑用钢连接部件及钢构件耐腐蚀性能测试方法国家标准
英文:Corrosion of metals and alloys—Test method for the corrosion resistance of construction steel joint and member GB/T 4...
英文:Corrosion of metals and alloys—Test method for the corrosion resistance of construction steel joint and member GB/T 4...