Our enterprise since its inception, constantly regards product good quality as organization life, constantly improve production technology, strengthen merchandise high quality and continuously strengthen enterprise total good quality administration, in strict accordance with all the national standard ISO 9001:2000 for Carbonation Stone for Hydroponic Farming, Porous Sparger , Gas Sniffer Detector , Stainless Steel Filter Tube ,Dew Point Hygrometer . All prices depend upon the quantity of your respective order; the extra you purchase, the extra economical the rate is. We also offer fantastic OEM provider to numerous famous brands. The product will supply to all over the world, such as Europe, America, Australia,Cannes , UK ,Kenya , Zambia .We have top engineers in these industries and an efficient team in the research. What is more, we have our own archives mouths and markets in China at low cost. Therefore, we can meet different inquiries from different clients. Please find our website to check more information from our products.