Industrial door including:panel,accessory and motor,operated with Manual and motornized,widely use in workshop,warehouse etc. Dacheng brand industrial doorWe can design ... #,3#,4# 5.OD:3.2 steel cable,Nylon roller,bracket,balance pole(Solid shaft),seal,cable drum,torsion.track connector ... thickness is 50mm, square steel bar size 40*40Carton Package Industrial door