ZheJiang cowell petroleum machinery Co., Ltd, CCCPI member, which was established in 1990, specializes in manufacturing Manual nozzle with flow meter, Electronic nozzle with flow meter, Automatic Shut Off Fuel Nozzle, horizontal type Flow Meter, oval gear flow meter,Electronic oval gear flow meter, 12v/24v Diesel Fuel Drum Pump, Vane Pump, Gear Pump, Hoses, Filters, QBY series Air-operated Diaphragm Pump,QBK series Air-operated Diaphragm Pump, DBY Series Electrical Diaphragm Pump(with both cycloidal and turbine type), is an integrated company in petroleum equipment and valve industry. Our...