Relatório de Ensaio de máquinas
Garantia de componentes principais
Usage
mining supporting articulated roof beam Other name
Hinged roof beams bar metal steel bar Connect number of each time
Permissible bending distance (KN.m)
The beam body 52.50/ Connection articulated 30.00 The Angle
Upper, lower ≥7°/Left, right ≥3°