Garage door system: Torsion spring and tensile spring

,more convenient to open,can be used up to 50,000 times. 

surface material:Prepainted galvanized steel sheet

Steel thickness|:0.326mm-0.5mm

Thermal insulation material:Polyurethane foam

Foaming density:50kg/cbm

Thickness of the door:40mm

Height of unit slat:440mm-540mm

Main features:wind and shock resistance, dampproof,water and dust proof,lower noise,anti-fire

Color:various kinds

Pattern: single square, double square,A-style stripe,B-style stripe,others.

Can add visible window on the door according to customer’s request.

Advantages of DID sectional garage door * Smooth running * Spring safety device * Secure locking * Attractive door handle * Quiet running * Finger protection on the side cover, roller, panel joint