Channels are accurately and carefully cold formed to size from low-carbon strip steel.
19 Gauge (1.0 mm) ASTM A1008
19 Gauge (1.0 mm) ASTM A653 GR 33
All nuts are manufactured from mild steel bars conforming to ASTM A1011 SS GR 33.
Fittings are made from hot rolled, pickled and oiled steel plate or strip and conform to ASTM A1011 SS GR 33.