1) Door plant material: double layers, zinc-plated 

2) Core department material: polyurethane

3) Dimensions of door plant: 

    a) Width: 2440mm-12000mm

    b) Height: 2130mm- 7300mm 

6) Thickness of door plant: 50mm

7) Coefficient of thermal resistance: R=14. 96, 18. 25

8) Surface polyester of door plant: white, almond color, brown 

    (other colors can be arranged) 

9) Track: 2" (51mm) and 3" and (76mm), both adopt 1.5-3mm thick

     hot zinc-plated stencil plate   

10) Standard rail, low rail, high to promote rail, vertical to promote 

     rail and oblique canopy promote rail

11) The balanced system of external button reed, the working life 

     of button reed is up to the job circulation 50,000-100,000 times

12) The U vinyl sealing strip of the bottom prevents frostbite, damp 

     proof and waterproof

13) The side and the top take the trough sealing strip to seal

14) Small door of pass way: many kinds of sizes available 

15) Small observation window: many kinds of sizes available 

16) Fire-retardant grade: A