91日韩精品天海翼在线观看-91色偷偷-91色在线-91视频99-免费黄色大片网站-免费黄色大片在线观看

Anhui mining machinery and electrical equipment company is the national coal machinery equipment manufacturing backbone enterprise. Established in 1958, the predecessor was the huaibei mining bureau machinery plant, which was built and developed by coal, and has been expanded, reorganized, restructured and newly built. Now it is part of anhui huaihai industrial development group. In 2016, China ranked 14th in the top 50 coal machine manufacturing industry, which became the leading enterprise of coal machine manufacturing in huaibei region. For many years, anhui mine machine has been sticking to the strategy of science and technology. Successively with the Beijing MeiKe institute, shenyang institute, China mine, anshan strength, tianma technology, rapid, and a number of research institutes in company dati and high-tech enterprise strategic cooperative partnership. It has jointly developed new products such as underground portable rescue capsule, monorail crane, electro-hydraulic support hydraulic support, EBZ230 driving machine, etc. And independently developed the underground advance support device, equipment train and so on.