网页Unistrut channels are accurately and carefully cold formed to size from low-carbon strip steel. STEEL: PLAIN 12 Ga. (2.7 mm), 14 Ga.(1.9 mm) and 16 Ga. (1.5 mm) ASTM A1011 SS GR 33. STEEL: PRE-GALVANIZED 12 Ga. (2.7 mm), 14 Ga. (1.9 mm) and 16 Ga. (1.5mm) ASTM A653 GR 33. FINISHES Fittings are available in: Perma-Green III (GR),