shutter door-automatic sliding door closer is a good example of efficient production of Shenzhen Hongfa Automatic Door Co, Ltd.. We select superior raw materials in a short time which only come from qualified and certified suppliers. Meanwhile, we strictly and quickly conduct testing in every phase without compromising the quality, ensuring that the product will meet the exact requirements.. Hongfa established by our company has been popular in the China market. We constantly keep trying new ways of increasing the current customers base, such as price advantages. Now we are also expanding our brand to the international market - attract global customers through word of mouth, advertising, Google, and official website.. The basis of our success is our customer-focused approach. We place our customers at the heart of our operations, providing excellent customer service available at Hongfa Automatic Door and recruiting highly motivated external sales agents with exceptional communication skills to continuously ensure clients are satisfied. Fast and safe delivery is regarded of great importance by every customer. Thus we have perfected out distribution system and worked with many reliable logistics companies to ensure efficient and reliable delivery..