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In 2005, Yi'nuo Baosi Group invested in founding Shanghai Baosi Compressor Co., Ltd. In Shanghai. The company engaged the famous screw compressor design & manufacturing experts enjoying the subsidies of State Council and the first batch of screw study& design engineers. After 4 years' R&D, we succeed in mastering the BS type design technology of Baosi screw rotor which has independent intellectual property rights.

In May 2008, Yi'nuo Baosi Group invested in setting up Ningbo Baosi Energy Equipment Co., Ltd. Which formally put into large-scale production with the steady development of energy machinery equipment industry and the growing technical team in July 2009. So far, the company has formed a series of products, including screw compressor air end/host, medium-pressure screw compressor, screw vacuum pump, oil-gas multiphase pump, skid-mounted liquefaction equipment, flammable gas(CBM, oil gas, Petrochemical exhaust, biogas, shale gas and other industrial gas )recycling engineering equipment etc.

Now the group has total assets over 500 million RMB, 1800 staffs and 173, 333 m2 cover area, as well as more than 50 units of Japanese Mazak machining centers, more than 50 sets of screw rotor machines, 4 sets of German KAPP grinding machines etc. Annual production of screw compressor air end 60, 000 units, screw air compressors are 5000 sets and nearly 200 sets industrial gas compressors. In regard to protection of intellectual property rights, we have applied 39 domestic and abroad patents, and 17 of them has been authorized including 2 invention patents, 6 appearance design patents, and 9 utility models patents.