High grade. High-end brands usually have high reputation and complete product range. Longyang Door is affiliated to Longyang Door Industry Co., Ltd. and has established a complete marketing and customer service network in the domestic anti-theft security door market. There are about 300 stores nationwide. It has been awarded the top ten brands in the security door industry and is a famous trademark in Jinhua City. The popularity is relatively high. Moreover, its products include Xin series safety doors, Dragon series safety doors, cast aluminum armored doors, etc. The products are complete and can meet the needs of general consumers, so they are high-end.