Chongqing naishi valve limited company is a professional domestic electro magnetic valve manufacturers; the company persevere based on scientific and technological innovation, devote themselves to productresearch and development, adhere to the product quality of the perfection ofthe principle, brought together a gro u p of mainly to middle-aged and young outstanding technical backbone, in long-term continuous research and Practice has accumulated rich theoretical knowledge and actual combat experience. The company passed the IS09OQl：2Oo8 quality system certification, has won the two CE attestation, twelve patents, explosion-proof certificate and the special equipment manufacturing license. Company mainly produces high-voltage explosion-proof solenoid valves and gas emergency cut-off solenoid valve, solenoid valve, solenoid valve solenoid valve for high temperature, lowtemperature,steam solenoid valve, gas solenoid valve, a series of two-position three way solenoid valve 8o, tens ofthousands of product specifications; company developed the bump composite electro magnetic valve of piston rings is a national initiative, is the leader in the industry, the company is strong in technology, product quality Volume stability, profess ion al te chn ical advantages to meet custo mer require ments for multi-level, diversity, to build the most practical brand is our outreach The basic principles of the market The company not to move or retreat pursued " in good faith to hold a letter, Liren Liye " business attitude, always persist firmly in to provide the high quality, safe, and reliable technology and products. As in the pastto create value for customers, provide more quality services. Holding the first person, afterthe founding ofthe purpose and look forward to all sectors of the community friends sincere cooperation, hand in hand, mutual benefit, create brilliant.