PP pipe
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What standards are used for PP pipes? Could anyone who knows answer this?
Depending on the application: GB/T 18742.2-2017 \"Polypropylene piping systems for hot and cold water – Part 2: Pipes\", GB/T 35451.2-2018 \"Polypropylene (PP) structural wall piping systems for buried drainage and sewage – Part 2: Polypropylene wound structural wall pipes\", GB/T 32463-2015 \"Methods for identifying the materials of polypropylene (PP-R, PP-B, PP-H) pipes and fittings\", GB/T 24693-2009 \"Polypropylene drinking straws\"