Good quality wasterwater treatment provider from china,Established in 2007, Yixing Holly Technology is an I S O,C E,B V certificated domestic forerunner in production, research and development of environmental protection equipment and parts used for water & wastewater treatment,Besides solutions and installations, we supply specific equipment, instruments and machines for any particular application, such as: Aeration Systems with Fine Bubble and Coarse Bubble Diffusers, Sludge Dewatering Screw Press, Chemical Dosing System ,Nano Bubble Generator ,Mechanical Bar Screens/Step Screen/Rotary Drum Screen, Tube Settler Media, MBBR media,Dissloved Air Flotation. YIXING HOLLY TECHNOLOGY has now developed into a comprehensive enterprise integrating production,R&D,trading,logistic,pre and after sales service as one.