Accepted in the market and society, Shenzhen Hongfa Automatic Door Co, Ltd. has many years of experience in producing leading quality electric roll up door. According to the material, Hongfa Automatic Door Company's products are divided into several categories, and cold storage doors is one of them. This product has a high water treating effect. Its built-in ultrafiltration system can filter out the worthless and harmful suspended solids or other contaminants. It won't be damaged by the collision accident. Mature technology, standardized production and strict quality management system ensure the quality of automatic door. The product effectively cut off the air circulation.
Custom roll up doors is Hongfa always operates. Get more info!