China Golden Door Technology Co., Ltd is a professional and competitive leading supplier in China for door technology products especially in the field of door/gate automation systems, auto/manual operating theatre doors and auto/manual cold room doors. With many years of experience of making and supplying automatic doors, OT doors and cold room doors, we can offer our domestic and overseas clients with the best choice items in reliabale quality, reasonable price, in-time deliery and long time warranty. We sincerely look forward to establishing long term business relationships with our old and new customers.