This is Maggie from weihai xiangyu company ltd. specializing in the water treatment chemicals production ,such as antiscalant, corrosion inhibitor, oxygen scavenger, biocide, coagulant flocculant, cleaning agent used in the RO system, circulating system,sea water and boiler.Welcome to contact me if you have any inquiries.My skype:keaimaggieqq:415065250