Guangzhou Zhonghang Environmental Technology Co., Ltd was established in 2012. We are a manufacturer engage in Recirculating Aquaculture System, Raw Water Treatment System, Aquaculture project, and Aquatic engineering research. Our products include whole set of RAS, protein skimmer, automatic drum filter, uv sterilizer, biological filter, ozone generator, oxygen generator, PP fish tank, water pump etc. We have professional technical personnel to offer you professional service in your aquaculture system. And our product was salad well in the world. Please feel free to contact us for more information.