... in medical equipment,massage apparatus 3.flow:300L/H,head:1m 4.less than 35dB Zhongshan jingdian ... 2008 certification, With nearly ten years experience of design R & D, production, and sales in mini air pump ... , We own a professional R & D team those who engaged in mini air ... more than 20 years; Our enterprise mission is create the world's biggest pump supplier, we use practical ...