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VPS installation process and acceptance of direct buried insulation pipe acceptance standards: 1. on-site inspection: polyurethane insulation and waterproofing materials have two properties. after the materials are in the site, the raw materials must be re-examined. the content of the sprayed polyurethane re-examination mainly includes the density, compression performance, and dimensional stability of the material. note 2 0 2 3 0 8 2 5 what are suitable for in northern china? 2 0 2 3 0 8 2 5 factory interior view factory interior view factory interior view factory interior view factory interior view VPS, report an error VPS, the content included in this site is from big data collection and the copyright belongs to the original website! VPS, tongliao steel tongliao xinyuan insulation pipe set as home page
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