As a well-known brand manufacturer of industrial doors and warehousing and logistics equipment, CHI is committed to promoting the development of multiple categories, focusing on the technological development, design, manufacturing, sales, and after-sales service of industrial doors, fast rolling shutter doors, boarding bridges and other products. The main products include industrial lifting doors, hard fast doors, soft fast doors, boarding bridges, terminal shelters, industrial terminal sealed cold storage insulated fast doors, special explosion-proof industrial doors, etc. Based on European industry standards, we continue to carry out technological innovation and have a number of international-level core technologies for industrial products.