首页>
外国专利>
CLOSED-CONTOUR ROOF SUPPORT FROM SPECIAL ROLLED SHAPE
CLOSED-CONTOUR ROOF SUPPORT FROM SPECIAL ROLLED SHAPE
展开▼
机译:特殊形状的封闭式屋顶支撑
展开▼
页面导航
摘要
著录项
相似文献
摘要
the invention относитс to the case and can be used in an услови х mines (gv) in comprehensive mining of davle / j ни .peul simplification of installation works to install лежн and ensuring посто нн
展开▼