Shenzhen Hongfa Automatic Door Co, Ltd. attaches great importance to the raw materials of fire rated doors-high speed spiral door. Apart from choosing low-cost materials, we take the properties of material into consideration. All the raw materials sourced by our professionals are of the strongest properties. They are sampled and examined to ensure they comply with our high standards.. We differentiate ourselves by enhancing the awareness of Hongfa brand. We find great value in enhancing brand awareness on social media platforms. To be most productive, we establish an easy way for customers to connect to our website seamlessly from the social media platform. We also quickly respond to negative reviews and offer a solution to the customer's problem.. Our dedicated and knowledgeable staff have extensive experience and expertise. To meet the quality standards and provide high quality services at Hongfa Automatic Door, our employees participate in international cooperation, internal refresher courses, and a wide variety of external courses in the areas of technology and communication skills..