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Solid wood garage door technical parameters
人气：698 发表时间：2016-11-21 10:03:53
Solid wood garage door technical parameters are as follows:Solid wood garage door balance system:
(1) balancer using torsion spring balance system.
(2) the balance system casing pipe is made of galvanized steel pipe.
(3) the torsion spring material adds 65 manganese, increases the anti fatigue degree, prolongs the service life of 2-3 times.
