Zhongshan Tengo Lock (Manufacturer) Co., Ltd. is one high-tech lock company, focusing on the R&D, design, production and distribution for the hotel card lock, bathroom lock,power saver,hotel safe and hardware fittings. Tengo is located in "China's Hardware Manufacture Base" and "China's Lock Export Base" of Xiaolan Town, Zhongshan City. In 2008, Tengo intelligent lock gained independent knowledge property right and 40 invention & exterior design patents. There are more than 100 kinds of intelligent locks for hotels, houses, office buildings, schools,...