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river lights changzhou zhongmin machinery manufacturing co., ltd. is specialized in the research and development and production of unzip rope winches, single hydraulic pillars, suspended single hydraulic pillars, and unzip rope continuous tractors. changzhou zhongmin is aimed at coal mines and serves coal mines. its products have been widely used in major mining groups and coal mines across the country. welcome to call for consultation: 0519-88311035 1 lishui qihang bearing co., ltd., mainly engaged in hardware retail. 30 card league
