... , ISO9001, 14001, OHSAS18001, SONCAP. 3. Elegant design and easy assemble. Steel Security Door 1. New desgin in 2010, 2. CE, ISO9001 ... , 14001, OHSAS18001, SONCAP. 3. Elegant design and easy assemble.Steel Security Door1. New desgin in 2010,2. CE, ISO9001, 14001 ... of doorleaf0.5mm (you can change another thickness)Steel sheet thickness of door frame1.0mm (you can change another thickness) ...