The door will go down to touch the ground when it is closed. Covered with rubber strips around both sides and upper and bottom sides, the door can meet the requirement of hermetization. The hermetic performance can meet the need of the first grade for our national stardard GB 13686-92.

The material for door plate can be aluminum alloy or stainless steel. Powder coating for door plate, different colors can be chosen. Polyurethane foam inside the door.