Hongfa Automatic Door Company is one of the leading companies which manufacture custom roll up doors. We have been serving the industry for a long time. According to the material, Hongfa Automatic Door Company's products are divided into several categories, and cold storage doors is one of them. The product will not eliminate the healthy elements out, such as magnesium, zinc, iodine, etc. Because the super nano separation technology used can eliminate the harmful substances out yet retain the healthy elements. The thickness of the curtain can be customized according to needs. Hongfa Automatic Door Company cooperates with international counterparts. The product greatly helps reduce air convection.
The culture of roll up door plays a positive role in Hongfa's development. Contact!