????? ------------- ?????????? ??????????? ???????????? ??????????????????? ????????????? ???????????? ?????????? ?????????????? ?1?????????? ???? ??????????????????????? ?2????? ??? ????????????????????1?????? ?? ?? ??? ????????5????? ?3????????? ????? ????? ?????????? ????????? ???????? ?4?????????????? ????????????????? ????????15000???? ???????300?? ?5???????????? ????? ???????30% ??70%?????????? ???????????.?????????????? ??????? ??????? ?? PVC???????13535538747?
????????????PVC?? ????????????