... Over several years developments, Tianjin Haohong weiye Steel Trading Co., Ltd has turned into an intergrated steel service center with combination ... stainless steel flat, carbon steel products and alloy steel materials. It also can supply the processing of surface, like ... steel plate/sheetGrade200,300,400series and Special stainless steel materials , such as201,304,316,316L,410S,420,etc. ...