steel gear pinion for sliding gate motor M4 19 teeth 21mm

Welcome to my store, we have many kinds of price products, we launch new products every day, please follow my store and pay more attention, for more products, Please click on the seller information to enter our store to buy, we hope give you a pleasant shopping experience. Thank you and have a nice day. Access control and security systems are used to protect people and property, so the system itself must be safe. The high safety mentioned here, on the one hand, refers to the natural or quasi-natural attributes of the product or system, which should ensure the safety of equipment and system operation and the safety of operators. Heat, smoke, mold, rain, and anti-radiation, anti-electromagnetic interference (electromagnetic compatibility), anti-shock, anti-collision, anti-drop, etc. The operation safety of equipment and systems also includes fire protection, lightning protection, explosion-proof, Anti-electric shock, etc.; on the other hand, the access control and security system should also have the function of preventing vandalism, such as: a protective shell with anti-vandalism, as well as a tamper-proof alarm, anti-short circuit and open circuit, etc.