煤矿水介质液为偶合器专业工厂张家口煤矿机械厂，张家口液压件分厂厂长刘战胜张家口煤矿机械厂是我国煤炭行业最早生产煤矿机械专用设备的国家大型一类企业，隶属煤炭工业部，以专业生产煤矿刮板输送机、转载机、破碎机、刨煤机、单体液压支柱等煤机产品闻名全国。同时还... Coal Mine Aqueous Media is a professional coupling factory Zhangjiakou Coal Mine Machinery Factory, Zhangjiakou Hydraulic Factory Liu Zhansheng Zhangjiakou Coal Mine Machinery Factory is the earliest coal-producing machinery industry in our country a large class of enterprises, under the Ministry of Coal Industry to Specializing in the production of coal scraper conveyor, reprinting machine, crusher, plow, single hydraulic props and other coal products known throughout the country. At the same time also ...