DE is one of professional manufacturers in Machinery Components. Our main products cover Helical Gear, Bevel Gear, Spur Gear, Double Helical Gear, Hydraulic Valves, Brake Valves, Operating Valves, Multi-Port Valves, Pressure Relief Valves, Aluminum Castings, Gaskets, Rollers, Seal Rings, Shafts etc. We have near 10 years experience on manufacturing and exporting, and we can supply very professional services on quality control such as API, ISO, DIN, EN, BS test procedures.