A reinforcing support for workings supported with arch metal support consists of a cross piece and two posts. The cross piece is made of metal profile as a straight one, and the posts are made of wood of metal profile.
申请公布号
UA65661(U)
申请公布日期
2011.12.12
申请号
UA20110006590U
申请日期
2011.05.26
申请人
NATIONAL MINING UNIVERSITY, STATE HIGHER INSTITUTION
