Ключевые слова:
Staging|Portable|Rigidity|Ladders|Safety measures|Magnesium-containing alloys|Aluminium alloys|Torsion testing|Ropes|Steps (stairs)|Adjustment|Manganese-containing alloys|Maintenance|Medium-duty|Industrial|Designations|Deflection tests|Marking|Mechanical properties of materials|Domestic|Trestles|Mechanical testing|Bend testing|Testing conditions|Dimensions|Straightness measurement|Chemical composition