屋顶、防潮和防水用煤沥青|沙特标准|SASO-ASTM-D450

  屋顶、防潮和防水用煤沥青|沙特标准|SASO-ASTM-D450
  
  SASO-ASTM-D450
  
  Standard Specification for Coal-Tar Pitch Used in Roofing, Dampproofing, and Waterproofing
  
  屋顶、防潮和防水用煤沥青的标准规范
  

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