1.Door plant material:double layers,zinc-plated;
2.Core deparment material:polyurethane;
3.Dimension of door plant;
a)Width:2,440mm~12.000mm
b)Height:2,130mm~7,300mm
4.Thickness of door plant:35mm,40mm,50mm
5.Surface polyester of door plant:white,alomond color,brown(other colors can be arranged);
6.Track:2''(51mm) and 3''(76mm),both adopt 1.5~3mm thick;
7.Standard rail low rail,high to promotel,vertical topromote rail and oblique canopy promote rail;
8.Balanced system of external button reed,the working life of button reed is up to the job circulation 50,000~100,000 times;
9.The U vinyl sealing strip of the bottom prevent frostable,damp proof and waterproof;
10.The side and the top take the trough sealing strip  to seal;
11.Small door of pass way:many kinds of size available;
12.Small observation window:many kinds of size available.