Features: The main body of the product is made of high-quality plastic + zinc alloy cover, which is simple, fashionable and durable. This product has high structural design strength, shock resistance, waterproof, fire resistance, high temperature resistance and corrosion resistance. One-piece molding, fine casting workmanship, smooth and delicate, with strong physical stability. Fine polishing electroplating, not easy to wear, rust, fade. Widely used in door locks for RVs, buses, yachts, ferries, mechanical trunks, trucks, etc.