Galvanized Steel Industrial Factory Warehouse Prefabricated Steel Structure Building with Economical Design Model Number KXD-SSB54 Construction Period 60 Days Life Cycle 50 Years Warranty 30 Year Limited Warranty Quality Standards SGS / ISO / BV Production Capacity 5000 ton/Month About Pre-engineered Steel Buildings Pre-engineered steel buildings are steel structures built over a structural concept of primary members, secondary members, roof and wall sheeting connected to