00385nam a22001337a 4500003000400000005001700004008004100021040001000062082001400072245002600086260003600112300002000148500008300168OSt20200526152150.0200526b           ||||| |||| 00| 0 eng d  czaapa  a620.1 MEC  aMechanical Technology  aBedfordviewbCrown Publications  aVolumesg29.5cm  aMechanical Technology is endorsed by The Southern African Institute of Welding