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Recently, it was learned from Henan Diesel Heavy Industry Co., Ltd. that the “Working Tools and Methods for Interfering Oblique Holes of Diesel Engines†designed and manufactured by the employees of the company were authorized by the invention patent, and the State Intellectual Property Office issued the “Invention Patent Certificateâ€.
In addition, the "angle indicating device" designed by the employees of Henan Diesel Heavy Industry Co., Ltd., "a processing tool for boring high-precision multi-speed shaft holes", "a fast locking device", "a new structure The four technologies of the machine tool and knife device were authorized by the utility model patent, and the State Intellectual Property Office issued the "Practical Model Patent Certificate".
Hechai has been granted several national patents
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