square bar spiral spring

... split-secondoperating lever spring 双秒针活动杆簧 square bar spiral spring 方条盘簧 stabilizer spring 横置弹簧 ...

直角三角形_馆档网 ... "方杆,方条"," square bar" "方条蜗形弹簧"," square bar spiral spring" "直角弯管"," square bend" ...