长壁采煤法

由久益设计的动力支护 PRS 解决方案

  • Support rating Up to 1 814 metric tonnes Up to 1,929 short tons
  • Support widths 1.5, 1.7, 2.0 m or more 4.9, 5.7, and 6.7 ft. (1.5, 1.7, 2.0 m or more)
  • Operating heights .8 - 7.8 m 2.6 - 25.6 ft.

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