... Industrial Doors 1.CE,ISO9001,SGS 2.Safety systems 3.Windows/passing door optional 4.Zinc-plated Steel hardwar Steel Sectional industrial ... breakage safety bottom brackets: Prevent horizontally dropping. Industrial door/Sectional Industrial doors1. Door panels are made of painted steel ... Run Ways: Remote control, wall switch or manual4. Industrial torsion spring Life: more than 3,000 times’ lifting5. ...