Keywords:
Agriculture, Aluminium, Aluminium alloys, Basic design data, Bending strength, Bending stress, Climbing devices, Connections, Definitions, Design, Dimensioning, Dimensions, Distinguishing signs, Finishes, Foot, Instructions for use, Joints, Ladder, Ladders, Loading, Marking, Materials, Mathematical calculations, Metals, Risk of stumbling, Rung ladders, Rungs, Safety devices, Safety engineering, Safety requirements, Spars, Specification (approval), Stability, Stays, Strength of materials, Strength provings, Stress, Struts, Taper on periphery, Testing, Trees (plants), User information, Wood, Work process