DN1200 PN10 ????????????? ????????????? ?????????????? (BS5150 ??????????? & Bevel ?????????)
DN1200 PN10 metal seated ductile iron Gate valve, (BS5150 With bypass & Bevel Gear) pass valve ??? ?????????????? ??????????????????? ??????????????????? ?????????????? ????????? ba ????? ?????????????????? ????????????????? ??????????????????? ?????????????? ?????????????????
???????????????????