Having established ourselves as the national leading electric roll up door manufacturing provider, Hongfa Automatic Door Company gains a reputation through extensive experience. According to the material, Hongfa Automatic Door Company's products are divided into several categories, and spiral door is one of them. Extensive physical performance tests for Hongfa cold storage doors suppliers have been carried out. These tests include slip and flex cracking resistance testing, bond adhesion testing, seam & attachment strength testing, and colorfastness testing. Its control panel adopts Italy brand - SERVO. The product features high strength. It is treated with the combing process which aims to remove the shorter fibers and create a stronger yarn. The product has outstanding insulation save energy.
The establishment of standards for cold storage doors will make Hongfa Automatic Door Company truly serve the customers. Contact!