... easy and fast to install, stable in construction; Dome structure, Dome steel buildings, Steel frame domes This kind of Dome ... what's more, can reduce the pollutions to the enviroment.1. Certificate: ISO 14001:2004, ISO 9001:2008, OHSAS 18000 ... -buildings, conventional centres, outdoor stadium, etc. Needing more steel structure products, pls contact us at your convenience. Project Exhibition: Haining ...