Zhejiang Qiankun Machinery Co., Ltd (restructuring from state-owned enterprise ) is a machinery and equipment manufacturing enterprises integrating Research & Development, manufacturing and marketing.it is located in Quzhou,a beautiful city of Zhe jiang province ,China. With the enterprise spirit "refinement pragmatic",We constantly develop new markets and innovate technology. Our main products are air compressor,both screw and piston type,electric and diesel engine, down the hole ...