... various door hole demand.1.Panel material is color coated steel thickness 0.326mm&Panel thickness:40mm (Aluminium panel avaliable ... 1#,2#,3#,4# 5.OD:3.2 steel cable,Nylon roller,bracket,balance pole(Solid shaft),seal ... control. 8.Panel size 4000*4500,insert one square steel bar in each panel to strength the door body ... ,panel 9.thickness is 40mm,square steel bar size 25*25 10.Panel size 6000* ...