Hi Good day my friend. This is Terry Zhang from Weihai Xiangyu Technology Co.,Ltd. Weihai Xiangyu Technology Co.,Ltd is located in Weihai City,Shandong Province,China,which is one of the most suitable living cities in the world. We product all kinds of chemicals for water treatment,for example RO system,boiler,Cooling tower,Waste water ,oilfield,oil refinery and etc. We began our prodcution from the RO chemicals, my boss together with the technician from GE company,one of the biggest water treatment chemicals company.We have the same technology with GE Series chemicals. Our chemicals can replace the GE chemicals perfectly with best quality at lower price. RO System Chemicals:RO Antiscalant(Desalination),RO Biocide,RO cleaning agent,RO Flocculant,RO Reducer and so on. Boiler Chemicals:Oxygen Scavenger, Corrosion Inhibitor,PH Conditioner ,Vanadium inhibitor and so on. Cooling Tower Chemicals:Biocides, Corrosion and Scale Inhibitor,Defoamer and so on. Waste Water Chemicals: PAC, PAM and so on. Oilfield&Oil Refinery chemicals :Demulsifier, corrosion Inhibitor,Biocides, Oxygen Scavenger and so on. We have passed ISO9001 certificate,Our products have widely used in China and global market.