... Length:4-14m Zinc coat:40-260g/m2(as required) Our corporation,as a professionalforeign trade organization,deal in the export ... raw materials andrelevant products for steel pip and galvanized pipe.We have a Export Products Department,whichspecialize in the export of ... square, rectangular tubes, spiral steel pipe.Weexport our product to USA and Europe ,and we get certificates like CE ,UL,ISO9002 and so ...