Heidelberg Technology is granted another invention patent

Recently, the “A method and system for ballast water treatment of ships with high efficiency inactivation and energy saving” developed by Qingdao Haiweiwei Technology Co., Ltd. was authorized by the national invention patent. The authorization for the invention patent is an invention pa

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The role of convenience service vehicles

In order to better promote the spirit of serving the people, many departments in recent years have been equipped with certain convenience service vehicles , which share a certain responsibility for the government and provide certain safeguard measures for t

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