Hangzhou NIHAO Environmental Tech Co., Ltd., headquartered in Hangzhou, ZhejiangChina, has over 16 years of experience in Plastic manufacturing and good resources for manufacturers. We consist of research, product development, production and sales of Plastic Products For the water treatment Industry. The main products are MBBR Bio Filter Media, Tube settler Clarifier, Bio Block Filter... https://www.nihaowater.com/