Hechai has been granted several national patents
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".
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Nantong Sika Machinery Co., Ltd. , https://www.sikamachinery.com