Ningbo Sono Manufacturing founded in 1988. Our company has set up Zhejiang provincial research and development center and hired domestic and overseas engineers. we produce six series of products as following: Air source treatment, Pneumatic control elements, Pneumatic act elements, Air press punch, Pipe fittings and Pneumatic tubes. We have the ability to supply the whole set of pneumatic system. Adopting the international advanced technique and machine equipment, we have passed ISO9001:2008 and got CE, ROHS certifications. And developing actively the market of home and abroad and building a wide sales net and after-sale service system. Satisfactory service to customers . Meanwhile, we won �National High and New Techno-logy Enterprises��� Technology Innovation Model Company� and so on . STNC brand has been Famous Brand in Zhejiang province, STNC products have been regarded as brand products in Zhejiang province, selling well all over the world.