SPS (Small Parts Steelwork) is steelwork that attaches a drop tube to a gantry, attachment point or mast.
The below image shows an SPS (highlighted) attaching a gantry and drop tube.
SPS (Small Parts Steelwork) is steelwork that attaches a drop tube to a gantry, attachment point or mast.
The below image shows an SPS (highlighted) attaching a gantry and drop tube.