KUNSHAN ERKANG MACHINE CO., LTD. established by TIME INTER-NATIONAL GROUP of U.S.A. possesses the advance PSA air separation technology from Europe and U.S.A. Our many units of large and medium size PSA Oxygen plant has successfully sold and installed for the overseas market.Now, as an international company, we are ready to serve the prosperous Chinese market with the same advance technology and the premium customer service. We Sincerely welcome your inquiry and we will satisfy your need by all means.we are a copmanyfor PSA Oxygener and Nitrogener.