... T-type Ductile iron self restrained pipes made by Xinxing pipe fittings co., ltd as below features ... 2006,Class:K9(3) Effective length:6M by buly shipment,5.7M by 20' or 40' container(4) ... (8) High strength ,lighter than gray iron,good corrosion resistance,no furring,small flow resistance,easy ... fixing,long life time(9)Checked by automatic inspection equipmentMore information is availiable upon ...