My husband was first wanting to try by himself; since it is very dangerous, we googled and found Robert garage door Edmonton and that guy did very good. Recommend to you.
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没买过自由车库的弹簧,但是工厂用的弹簧上面都有标签的告诉你多少turn和多大的torque。。。按照说明做不会有太大问题的,正常的情况下如果没有operator的话上好弹簧,你可以用手轻轻提起门的而不会自己飞上去的。如果门自己跑上去了,说明弹簧型号的选择是不正确的或者上太多turn了。