What the fire left is permanent pain! Once a fire occurs, not only need to be calm and witty, but also need to master and use the fire to save themselves. Fire escape can not be hoped by "emergency wisdom". Only by learning, mastering and storing fire fighting knowledge, can we respond to dangers and escape from danger. Dear, learn one more trick and take precautions!
Self-locking nut is a nut widely used in machinery and other industries. Its working principle is self-locking by using the friction between nut and Bolt. However, the reliability of this self-locking will be reduced under dynamic load. On some important occasions, we will take some anti-loosening measures to ensure the reliability of nut locking.
Self-Locking Nut,Self Locking Bolts,Self Tightening Nuts,Self Locking Flange Nut
Jiangsu Jiajie Special Screw Co., Ltd , https://www.jiajiescrewcompany.com