Description: The cover layer is heat galvanized
steel plate with beautiful cast square grid and venation.
The
door surface have rich colours and luster.
The inner material is polyurethane, and the
door is 35-51 mm thick.
The rails are made of galvanized
steel plates with two lifting ways:standard lifting and low net distance lifting.
Several types of
machines for opening
door for choice with manual,electric and
remote operation functions.
Safe protection: the
door has the function that it will rebound when the resistance is above 5kg, its response time is less than 2 seconds.