2. A
joystick allows the safe room occupant to lock and unlock doors throughout the house to trap an intruder.
安全屋居住者可利用控制杆锁住和打开房门而对入侵者设陷井。
3. The product is widely applied to textile machine, joint bearing, door hinges and
joystick of automobile, etc.
产品广泛应用于纺织机械、关节轴承、轿车门铰链、汽车超重杆等。