Dear sir, Madam
Iam a hydraulic engineer of china,my englinsh is very weak,so you might not understand writing in here ,I apologize for it .
I have a problem about hydraulic power unit ,i need some help from you .
Firstly. I would like to thank you for reading my enquiry and any help is much appreciated.
Because the science and technology of china is lower, especially in industry.the quality of hydraulic valve is also very weak. so many corporation purchase high quality hydraulic component and hydraulic power unit from overseas ,for example REXROTH,BOSGH,HRDAD,STAUF,VICKERS,STAUF,VICKERS,PARKER,MOOG,PALL,
ATOS,SAMHYDRAUL .so do my company.
The primary operation of My company design nonstandard hydralic system .we intend to act as an agent in china for corporation from overseas which manufacture hydraulic component or hydraulic power unit.The better is which production don't enter into china as yet.the better quality and the less price .
If you are or you touch which, please you email to me,I hope the help from you. my email is ysuflyingfish@hotmail.com
I appreciate your time and I woule very grateful if you could assist me.
Thanks again for your help
Regards
yusflyingfish

Have you looked at a company to your East called Nachi?

http://www.nachi-fujikoshi.co.jp/eng/yua/index.html

Thank you for share the information,I looked at the website of nachi-fujikoshi,because japan borders on china,almost every hydraulic company of japan have entered into china.so do nachi-fujikoshi.the most market of hydraulic components like valves,pumps,hydraulic hosesetc occupied by well-known hydraulic company ,for example Rexroth,Parker,Yuken. I hope more know about hydraulic power unit and cartridge valve.because the number of well-known compay in china which manufacture cartridge is less.the famous company is Hydac,which come from Germany. so I hope every one in this help me ,offering some information about hydraulic power unit and cartridge valve.

Go to www.hydraulicspneumatics.com and look in the "Designers Guide" link for a listing of all the Fluid Power manufacturers in the world.