"Based on domestic market and expand overseas business" is our development strategy for 0.5 Micron Oxygen Stone, Co2 Module , Filter Disk , Sht21 Humidity Sensor ,Air Stone Diffuser . "Passion, Honesty, Sound services, Keen cooperation and Development" are our goals. We've been here expecting close friends all around the earth! The product will supply to all over the world, such as Europe, America, Australia,Armenia , Seattle ,Cancun , Angola .To get more information about us as well as see all our products, please visit our website. To get more information please feel free to let us know. Thank you very much and wish your business always be great!