DW* meter manufacturer of hydraulic prop, DWX floating hydraulic prop, DN22 hydraulic prop, three valves, DJB1000 hinged roof beams, glass, steel hydraulic prop hydraulic prop main types: DW series, Note hydraulic prop, DWX single hydraulic prop (suspension hydraulic prop), DWB light hydraulic prop, since within the injection of hydraulic prop floating hydraulic prop came through the mine use, by the majority of users. Due to the mine's underground conditions vary, some use of units of the product put forward higher requirements, particularly strength to live the column. In response to this technical difficulties, I founded technical group, by a variety, a large number of tests, and finally developed a special heat treatment process, so that the surface hardness of the plunger from 28-30 ° up to 43-45 °, very effectively improving the pillars of "Artillery collapse", "bending" the ability to extend the life of the product, greatly reducing product failure rates. ? Shandong with hair supply hydraulic prop prop model range, accessories quantities. Common accessories cap, sealing cap assembly, plunger, the handle body, cylinder, return spring, the base, O-ring, ring, ring Ah, spring pins, dust ring, connecting wires, guide ring, three valves, liquid injection gun. DW35-250 / 100X suspension hydraulic prop bore hydraulic prop --90 80 Bore Bore Bore -100 hydraulic prop hydraulic prop --110 bore hydraulic prop, a few meters of different bore not the same, the product features a having a strong anti-bias load capacity and greater stability. 2. Light weight 3. High reliability 4. Working stroke low intensity greatly 5. 6. 7. Easy to use repair and maintenance costs 8. Use neutral water factory direct supplier obvious price advantage, factory direct. Hydraulic prop manufacturers stock, suspension hydraulic prop, DWB FRP hydraulic prop, Tel: Song Yanmin 18253712345 Fax: 0537-2784678 Want No: tongfacao QQ: 2721671682 Address: Jining City Li Yingzhen three Laughing Industrial Park on the 4th-mail: tongfasong@163.com Shandong with hair mining staff welcome your calls.