销售规格DN100-DN400球铁管,产品符合***GB/T13295-2003标准K9级T型接口球墨铸铁管规格及参数DN管体单管重量6M每米重量6M工作压力***大工作压力标准壁厚***小壁厚mmmmmmkgkgkg/cm2kg/cm21006.14.79515.8364771506.34.851442464772006.44.919432.3362742506.85.2525542.554653007.25.632353.8349593507.76.0540367.1745544008.16.448280.334251)