Center distance 1.75m, support strength 1.21~1.26MPa; suitable for coal seams with thickness of 3.4~6.0m; adopts Q890 high-strength plate to achieve lightweight design.
Center distance 1.75m, support strength 1.21~1.26MPa; suitable for coal seams with thickness of 3.4~6.0m; adopts Q890 high-strength plate to achieve lightweight design.