... tonQuality:SGCC, Dx51DColorall RAL colors( standard international color)or customers samples colorZinc-coating60g/m2- ... of decoration, corrosion resistance etc.Tianjin Haoyou Industry Trade Co., Ltd.,Tianjin Haoyou Industry Trade Co., Ltd., founded in 1993, is a ... pipe, operating metal material trade, chain store for mechanical & electrical products, international trade, ore business, automobile sale ...