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← ????????????????????? ???????????? ???????????????? ?????????????? ??????????????? ?????????????????????? :: Minced pork and soya bean curd soup ????????? ???????????????????????????????????????????? -  ???????????????? ????????????????????? ?????????????????????

????????????????????????????????????? ?????? “?????????… ????????????????? ???????????????????????????????? ??????????????????????????? ????????????????? ?????????????? ???????????? ????????????????? ????????????????????????????? ?????????? ????????????????????? ?????????????????

They are commonly presented in inexperienced or white shades. If we discuss the outer thickness of such pipes, the outer diameter is far thicker than PVC pipes. With using polypropylene, PP-R/PP-RCT pipes are usually not susceptible to corrosion, deposit or hurt from chemical substances,

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