Buying hotel door locks should not only focus on price, but many of the cheap ones are patchwork and have poor stability. Buying a hotel lock should focus on the following points: First, we must have our own core technology and a sound production and quality management system. Must have a certain scale of production. Second, there are complete product testing equipment, processes, and perfect quality inspection system. Third, there is a perfect after-sales system. Fourth, we must have certain production experience. At least five years of production history is best. It has a production history of more than ten years. At least the hotel can use two decoration periods (generally 12 to 14 years), you can know the brand. The real use of the situation. These are just a few of the issues that need to be addressed. If these don't solve your problem, then call us and believe that you can solve your worries. LONG TERM ELEC. CO., LTD , https://www.longterm-hvac.com