Center distance 1.75m, support strength 1.02~1.05MPa; suitable for coal seams with thickness of 1.4~2.0m; adopts patented "thin-wall deep hole drilling" technology to increase the column extension ratio and realize internal circulation of column inlet and return liquid.
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ZY10800/11/22D Shielded Hydraulic Support
Negotiable
China
No.1, Kuangji Road, Fangshan District, Beijing, P.R. China
+86 10 81369541
zmbmj@chinacoal.com
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