Non-standard parts are mainly other accessories that are controlled by the company at will without the strict standard specifications set by the state and without the parameters related to them. There are actually many varieties of non-standard parts, and there is no standard classification criteria. Broadly classified as shown below.
Metal non-standard parts processing:
By the customer to give engineering drawings, the manufacturer according to the drawings using equipment to manufacture the corresponding products, generally are the majority of the mold, tolerance requirements, finish is all prescribed by the customer, there is no such paradigm. The product from casting to finishing completely requires the corresponding quality control, the process is intricate and complex and highly variable, usually costing more than standard parts.
Non-metallic non-standard parts processing.
It is the processing of some non-metallic materials. For example, plastic, wood, stone, etc. In recent years, the injection molding industry, the continuous development of plastic molds increasingly sophisticated, surface design, programming CNC references, so that the cost of non-standard processing and tolerance levels have been significantly improved.
