How are materials used by Hongfa Automatic Door Company for producing spiral door?
To Shenzhen Hongfa Automatic Door Co, Ltd., controlling the quality of materials is of the same importance to that of the quality of completed products. Materials utilized in spiral door are provided by trusted companies and analyzed by our experienced team. The materials used are considered throughout the certification.
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Accepted in the market and society, Hongfa Automatic Door Company 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 automatic door is one of them. Different quality tests for Hongfa electric roll up door have been carried out in the final production stage. These tests are an anti-aging test (ASTM D573), colorfastness to rubbing (AATCC 8), structural tearing strength or rigidity (SATRA TM30), etc. With an anti-freeze device, it runs smoothly in a low-temperature working environment. The modernized factory of Hongfa Automatic Door Company has very large scale and great capacity. The edge of curtain features continuous injection molded teeth.
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Hongfa strives to be recognized as a leading roll up door company respected by the public. Inquire now!

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