锻碳钢和合金钢管道配件|沙特标准|SASO-ASTM-A420

  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

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