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The thermal conductivity of PPR is very lower, meaning temperature simply cannot quickly be carried out from the surface environment for the liquid during the pipe, and vice versa.?????? – ?????????????????????????????????? ???????? ???????????? ???????????? ???????????????????? ?????????????????? ??? ppr ???????????????? ppr ???????????????? hdp

??????????? ????????????????????? ???????????? ??????????????????? ????????????????????????????????????????????? ???????????? ???? ???????????? ???????????? ??????????? ??????????????? ??????????????? ???????????????????????????????????? ????????????????????????????????????????????This website uses cookies to improve your expertise while you naviga