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GB/T 19472.2-2017 English PDF (GBT19472.2-2017)

GB/T 19472.2-2017 English PDF (GBT19472.2-2017)

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GB/T 19472.2-2017: Polyethylene structure-wall piping systems for underground usage -- Part 2: Polyethylene spirally enwound structure-wall pipes
This Part of GB/T 19472 specifies the terms and definitions, symbols, abbreviations, raw materials, pipe classification and identification, structure types and connection methods, requirements, test methods, inspection rules, marking, transportation and storage of polyethylene spirally enwound structure-wall pipes and pipe fittings for underground usage. This Part applies to structure-wall pipes and pipe fittings (or solid-wall pipe fittings) processed by using polyethylene (PE) resin as the main raw material, and polyolefin material as the auxiliary support structure, and using the winding molding process. The pipes and pipe fittings specified in this Part are applicable to underground drainage, sewage and other projects where the long-term operating temperature is below 45 ¡ãC.

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