... garage/chicken shed,container house, prefabricated home,sandwich panel, welded H steel,C/Z channel,corrugated steel sheet,etc. ... Steel" (GB50205-2001)"Technical Specification for welded steel structure" (JGJ81-2002, J218-2002)"Technical Specification for Steel Structures of Tall Buildings" ... and market as our developing motivity, and strive for exploiting larger market and provide The best and most ...