Cold-Applied Petrolatum Tape and Petroleum Wax Tape Coating for the Exterior of Special Sections, Connections, and Fittings for Buried Steel Water Pipelines

 
  • 鋼制供水管道專(zhuān)用型鋼、連接件和配件外部的低溫用礦脂帶和礦脂臘油帶包覆層
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