Sichuan Zhongneng Environmental Protection Technology Co., Ltd. is a high-tech enterprise focusing on scientific research, design, production, installation and technical services of “vacuum toilets”. With mature technology and rich design and construction experience, ZNZK has always been at the forefront of research of China’s vacuum toilet system products.

ZNZK has gone on to the largest supplier of vacuum toilet in China. With 500+ installations nationally, ZNZK design engineers and project managers have been involved in a large variety of projects of ……