... EN598 BS4772 standards3. Product export countries:Europe,South America,Africa,Middle East and South-East Asia,Their good quality has got ... pearlite grades of ductile lron>grade three(GB9941-88)6.Type of joint:.Push-on joint(Ttype) including Spigot end,EPDM ... -forrosive layer,T-bolts&nuts Socket end,flange joint(flange type)including flanged fittings,rubber gasket,flange-bolts&nuts.7.Hydrostatic ...