Hinge is also an important part of garage door。 Its quality has a great impact on garage door。 It mainly affects the noise, service life, resistance and appearance of garage door。 What we should pay attention to is that the coach's gap will be relaxed if it is bigger, and the smaller one will be cassette, so the gap should be moderate in size。 We can consider the size of the gap of the hinge, its flexibility, appearance defect and whether the anti-corrosion treatment is standard or not。
三、车库门配件功能——平衡系统