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Recently, Hangzhou Machine Tool Group received two invention patent certificates issued by State Bureau of Knowledge, such as "Flexible Support Mechanism of Longitudinal Screw Hydro Hydraulic Flexible Support" and "Cartridge Grinding Wheel Chuck", as well as "A New Type of CNC Round Table Grinder" patent certificate. So far, the company in 2009 received a total of 5 invention patents and 2 utility model patents of the country. It is understood that Hangji Group obtained this year, "the whole column mobile grinder", "grinding wheel turret" and "card sets of wheel chuck" three national invention patents, have focused on its newly developed, with domestic Leading level of new products - MKH450 plane forming grinding center. Hangji said that this Taiwan's leading nine-axis five-axis CNC grinding center grinding by the user test, the workpiece fully meet the technical requirements of the aircraft manufacturers have been ordered. The other two invention patents - "linear guide and rail slider multi-head grinding combination device" and "long-screw hydraulic flexible support device", with high technical value and universal significance of the promotion. So far, Hangji Group grinder products patents have been licensed 21, of which 7 invention patents, utility model patents 14; more than 30 kinds of patented products.
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