??????????? - ???????????
?????P1? ?????P2? ?????P3? ?????P4 ... ????????UPVC????UPVC. ?. 1. ???. ?????. ????/? ...
?? - ???????????????????????. ????????????????. ?? ... ?????????????????????????????. ???????? ... ????????... ?????????????. ??????????????????. ????? ... ??????????????????. ????????????????? ... ???????? - ???????????????TD(mm)???????????????????,????. ???????8?3?2 ... ???????. ????????????????,??????????? ... ?????????????????????????????????????????????????????. ??? ... UPVC ?????????>1MPa??. ??????????????????? ... Untitled???????UPVC ???????. ?1?????UPVC ????. 1. UPVC ???? ?40×2.0mm m. 4.00. 2. UPVC ???? ?50×2.0mm m. 4.90. 3. UPVC ???? ?75×2.3 ... Untitled - ?????... UPVC ?? UPVC ??????????. ?????????????????????? 4????????????KG130 ??????? Page 111. 102. 6.2.5 ????? ... ??????????? - ????????,?????UPVC ?????????????????DN400 ??UPVC. ?? ... ???????????????. ?????1 ????????????? ... ??????????... ??????????????????????(5)(k)(ii)?????? ... UPVC pipes are used for flushing water system. Water pipes are ... ??????????????????????????UPVC ???????. ?1?????UPVC ????. 1. UPVC ???? ?40×2.0mm m. 4.50. 2. UPVC ???? ?50×2.0mm m. 5.50. 3. UPVC ???? ?75×2.3mm m. ?????????????????????????????? ...???2022 ?1 ?18 ??????????????????????. ???????????????????????????????????. October 31, 1969 - UT System ANDOVER TOWNSMAN - Memorial Hall LibraryThe University of Texas at Austin. The University of Texas at El Paso. The University of Texas at Arlington.
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