Qingdao Zehan Machinery Manufacturing Co., Ltd. provides a wide
range of brass pipes, valves, and screw nuts used in electronic,
chemical, petroleum, refrigeration, water supply, HVAC and
locomotive hardware special fields with excellent industrial
framework. We are strong in technology and have a complete set of
advanced valve testing equipment.
We have strict quality management system and stick to valve
products technology standards to ensure products with stable and
reliable quality. Using environment-friendly copper, we produce
precision turning parts with different specifications, including
parts used in computers, mobile phones and LCD liquid crystal TV.