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The interference coloring process is one of the most recent developments related to the aluminum surface treatment industry, this represents the highest level of aluminum surface treatment industry. Minth is the only manufacturer in the world that can achieve mass production of interference coloring, supplying the world' s most high-end cars such as GM and Bentley.

Minth Group’s coating processes and treatments can achieve diverse color effects. Adopting a mature clear coat spraying process, we directly apply clear coat to the surface of metal oxidized parts — this appearance performance has been officially approved by General Motors (GM). In addition, this colorless process can effectively reduce production costs and minimize process defects, combining practicality and cost-effectiveness.

Welding technology is the core joining technology of Minth Group, which is mainly used for joining many kinds of plastic products, covering the technologies of heat welding/puncture welding/vibration friction welding/laser welding, etc., and we have advanced equipment and production lines.

Injection molding technology is the core molding process for the production of automotive plastic parts. Minth Group boasts a full range of conventional and advanced injection molding equipment and processes — covering not only conventional technologies such as single-shot, two-shot, and three-shot molding, but also accumulating profound experience in special processes including injection-compression molding, water-gas assisted injection molding, and low-pressure injection molding. This provides professional technical solutions for the production of high-precision plastic parts.

High-strength roll forming production lines enable fully automatic online processing of high-strength sheet metal products, integrating sequential processes such as precision stamping, profile forming, roll welding/laser welding, contour bending, and precision blanking into a single production flow. This closed-loop system achieves 100% full-process automation from material loading to finished product unloading through synchronized servo control.