Hydraulic Pumps,Hydraulic Pump Lever,Efficient Hydraulic Pump Lever,Hydraulic Pump In Car Jiangsu Minnuo Group Co.,Ltd , https://www.minnuo-machinery.com Recently, Zhongnan Equipment Co., Ltd. has successively obtained 12 utility model patents. From January to October this year, the company won a total of 20 patents, and currently has a total of 67 authorized patents. This time, 8 of the utility model patents applied for the company's rock drilling products have been authorized by the state's intellectual property rights, and Zhongnan Equipment has become a domestic manufacturer of high-power rock drilling rigs with many independent intellectual property rights and reaching the international advanced level.