The lower part of the suspension of the plastic part has a horizontal lining perpendicular to the direction of disassembly, which prevents the formation of cast plastic parts. In this regard, you must first determine the traction distance of the handle, evaluate the reliability and dependability, and determine the distance according to the actual situation. Due to many factors, the bending needle and the slider must be mounted in the movable form at the same time, and the relative motion between the four-threaded bending needle and the side slide of the rod is eliminated. mechanism. Remove the support. Side sliders should have a combined structure that saves precious metal materials, reduces costs, and facilitates processing and production. According to the structure of the lamp, the slider and the side rod are processed separately and then assembled together.