Standard Specification for Composite Ribbed Steel Pipe, Precoated and Polyethylene Lined for Gravity Flow Sanitary Sewers, Storm Sewers, and Other Special Applications

 
  • 重力流动卫生用排污管道,暴雨排污管道用和其他专用的预涂层的和聚乙烯衬料带由复合材料加强肋的钢管规范
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