Mining support:
Material:20mnk Q275
Detail parameter :18U height:99mm thickness:10 mmthory:18.96kg/m 25U height:110mm thickness:17mm TheoreticWeight :24.76kg/m
29U height:124mm thicness:16mm TheoreticWeight :29kg/m
36U height:138mm thicness:17mm TheoreticWeight :36kg/m
Mine support steel main characteristics: under pressure,
support time, easy to install is not easy to deformation, etc.
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