We, Qingdao Dadong Pneumatic & Hydraulic Co., Ltd, was founded in 1998. With the development of our company, we have become an integrated industry, both manufacture and vendition. We also have branch company in Zibo, Weifang, Pingdu which can impact the whole Shandong Province. The products we offer: gas type fitting, solenoid valve, cylinder, hydraulic valve, hydraulic cylinder, hydraulic equipment, etc. We would like to establish long-term friendly relations with you. Welcome to our company and make the wise decision.