... construction industry, galvanized steel sheet is mainly used to manufacture anticorrosion, industrial and civil architecture roof boarding, roof ... contact us for more information. Tianjin Shangyi Metal Structure Co. Ltd is a leading export company base in Tianjin, which ... long-term partnership! Company NameTianjin Shangyi Metal Structure Trade Co. LtdAddressA1905 of Future Plaza ,No 103,Weidi Road ...