00329nam a2200109Ia 4500008004100000082001000041082000800051245013500059245000800194260000800202300000900210231017s9999    xx            000 0 und d  a624.1  bBSI 0a"Stairs, Ladders and Walkways - Part 3: Code of Practice for the Design of Industrial Type Stairs, Permanent Ladders and Walkways" 0cBSI  bBSI  c30cm