?????????????????????????? ??????????????????????????????????????????? ???????? ????? ??????? ???????????????????? ?????????????? ???? ????????????????? ???????????????????? ??????????????? ?????????? , ?????????? , ???????????? Overall performance cookies are applied to understand an

The inner floor of PPR pipe is quite sleek and boasts a very lower friction coefficient, in comparison with traditional kinds of piping. This brings about a reduction of tension losses in the course of fluid transportation and distribution, additional contributing to the Strength performance of

?????????????????????????????????? ??????? ??????????? ??????????? ???????????? ??????????????? ???????????????????????????????????? ???????????????????????????????????????????? ???????????????????? ??????????????? ???? ?????? ????? ??? ?????? ????? ??? ???????????? ??????????????