Royal Tiancheng wooden door does not belong to Maxim's wooden door. Yupin Tiancheng Wooden Door is the trademark name registered by Chongqing Chuangyi Doors and Windows Co., Ltd. in the State Trademark Office. Maxim wooden door is a first-line brand, based on the production and sales of wooden doors, wooden handicrafts and wooden furniture. Is a company specializing in the production and sales of wood products and home improvement supporting production and sales.