... 400g/m2End treatmentplain,beveled, /threaded with sockets/coupling and plastic caps/flangeSurface treatmenthot dipped galvanized, oiled or ... used in fire fighting, gas pipes, water transport and water supply projects; building, central air-conditioning pipe, ... productssteel pipes,hollow sections,coils and strips,sheets and plates,flats and profile,corrugate and keels,and other steel products.Notice1. ...