QINGDAO ZHIYUAN VALVE MANUFACTURING CO.,LTD.has been in the business of producing and manufacturing marine valves casting foundry for nearly16 years. The company settles Qingdao city China. It is very near to port. With fantastic location, has most convenient transportation all from land, ...

we are here to provide the very professional services.our factory has qualification, top level producing facility and testing perfect quality management system. committed providing services our customers. ...