Engineering plastic adjustment knob assembly

The core components of the zinc alloy/engineering plastic precision multi-functional adjustment knob of Ningbo Wanchuang Precision Machinery Co., Ltd. are made of zinc alloy or engineering plastic materials, and their surfaces are treated with electroplating or polishing processes. They are both wear-resistant and durable with a fine texture, and are the core functional parts for achieving "precise adjustment, comfortable control, and beautiful decoration" in door systems such as doors, cabinet doors, and industrial doors. This knob deeply integrates ergonomic design. When held and rotated, it conforms to the curve of the hand, making operation effortless and providing a comfortable touch. Even with frequent use, it is less likely to cause fatigue. Through the rotation action, multiple functions can be achieved: In the home door scenario, it is a convenient handle for controlling the door lock opening and closing, easily realizing the opening and closing control of the door. In the app…