WH Group is the world's largest pork food multinational company, headquartered in Hong Kong. Food factories need traffic doors to enable carts to go out and in but WH Group has its process to pick suppliers. Xinyi's traffic swing door meets hygiene standards of the food industry and allow easy two-way entry and exit. We provide a one-stop service for all clients. This is a very important reason that they work with us. We have installed traffic doors in Shanghai factories in many cities, provide excellent after-sales service, and assist them, train technicians.