3T prop 1T back column 3T prop, the 2T prop, 5T prop 8T prop 512 liters column HH1-HH2-2-prop, YT4-6A push slipped is, YT4-8A manually push to stay, manually push slipped 5T hydraulic liter column 3T hydraulic liter column, 3T the mechanical-liter column or column is. Metal hinged roof beams, YQ hydraulic push to stay a variety of cylinder and all kinds of the coal machine parts HH1-2-back column specifically for coal mine recovery into a backplane single prop, buried metal roof beams and other devices designed drawing utensils, also can be used as a the coalface LaYun lifting work. The back of the column has a compact structure, light weight, fast drawing, the operation of labor-saving, safety and other characteristics. After extensive use authentication, higher than the original prop efficiency doubled and effortless operation half welcomed by the miners. The product can also be used for a large bundle of goods and use of brakes. HH2-2-type prop my company design and manufacture of a high-efficiency, multi-purpose coal mine portable lifting equipment. A variety of different perspectives can retracement of the underground buried metal pillars and other buried devices. For retracement mining height higher than one meter general mining, blasting mining, as well as apply upscale Common Face pillar, and also as an auxiliary tool in coalface pulling, lifting other heavy work. The product has the following characteristics: (i) safe and reliable, durable; (ii) the operation and maintenance is simple; (iii) high strength, small size, light weight, easy to carry; (iv) the pulling force, grip force, and high efficiency. Contact: Jiangjing Li Mobile: 15653732939 Tel 0537 -2998821 Fax :0537 2,228,358 QQ: 1,970,907,860