DeZhou zhonglian petroleum machinery co., LTD. is a product design, manufacturing, and service in one of the enterprise mainly engaged drilling mud pump accessories, well head assembly ,cementing tools, all kinds manifold manufacturing. ...

GuangZhou Sonka is a manufacturer and expoter of Seal.Our company located in Tianhe district,Guangzhou,GuangDong.The has strong technical strength,sophisticated production,equipment,perfect manufacturing technology,strict quality control,resource-rich output to provide ...