The manufacturing process is sophisticated and complex. First, high-precision molds are made according to the design drawings, and undergo precision machining and surface treatment to ensure the dimensional accuracy and smoothness of the cavity. The pre-treated plastic raw materials are added into the barrel of the injection molding machine, heated and melted, then injected into the mold cavity under high pressure.
The temperature, pressure and time are strictly controlled to ensure uniform filling of the plastic. After injection molding, it is cooled and shaped, and the accessories are taken out by opening the mold. Some accessories also require post-processing procedures such as grinding, polishing, thread processing, and secondary injection molding to add sealing rubber rings.