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    国产欧美一区二区三区在线看_国产中文在线_国产精品中文字幕在线观看_日韩欧美国产精品亚洲二区_国产码一区二区三区_国产青青在线 国产亚洲精品高清在线_国产精彩视频在线观看免费蜜芽_国产精品视频二区不卡_国产精品欧美亚洲韩国日本99_亚洲欧美国产日产综合不卡_国产产一区二区三区久久毛片国语
    Welcome to the official website of shandong longye machinery co., LTD!                 中文站 ENGLISH

    • Blasting rig
    • Photovoltaic (pv) drill
    • Water well drilling rig

    Shandong longye machinery co., LTD is a backbone enterprise specialized in producing hydraulic drilling rig, engineering drilling rig, hydrologic drilling rig and geological survey drilling rig. The company covers an area of 35,000 square meters, more than 160 employees, engineering and technical personnel more than 20, all are professional design talents. The company to concept innovation as a guide, strategic innovation as a guarantee, to organizational innovation as a guarantee, to technological innovation as a means, to market innovation as the goal, with the dragon

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