... GB ,AISI , ASTM , BS, JIS ,CE (DIN18800) Type light / heavy Commodityprefab steel structure SpecificationsStandard ISO 9001 : 2008 , GB ... , length ,width and height as customer ‘s designType light / heavy Using workshop, steel walkway and floor , steel structure platform ... design .2. Quick installation ,easy disassembly and moving ,light for transportation3, High-strength ,heat and sound insulation , ...