锻碳钢和合金钢管道配件|沙特标准|SASO-ASTM-A420
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锻碳钢和合金钢管道配件|沙特标准|SASO-ASTM-A420
SASO-ASTM-A420
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
低温服务用锻碳钢和合金钢管道配件的标准规范
SASO-ASTM-A420
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
低温服务用锻碳钢和合金钢管道配件的标准规范
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