铸铁焊条及焊丝 (GB/T 10044-2022) Covered electrodes,wires , rods and tubular cored electrodes for fusionwelding of cast iron 代替GB/T 10044-2006 发布时间: 2022-10-12 实施时间: 2022-10-12 阅读数量: (72) 标准分类: J 机械及安防产品