Model WN-MF4-HC is a standard 4-inch split damping hinge. The product comes in four mainstream anodized colors: matte black, luxury gold, deep space silver, and shadowy gray. It continues the brand's oil-free split spring-driven structure, completely solving the problems of oil leakage and buffer failure in traditional hydraulic hinges. The damping module can be disassembled and replaced separately to reduce maintenance costs. The two-stage closing force can be freely adjusted, providing a rich range of appearance options that can match modern, minimalist, new Chinese style, and luxury interior designs. It offers standardized hinge products that combine both appearance and performance for door manufacturers.