Intermediate metal Conduit 1/2" to 4" ALE-50M TO ALX-400M Carbon Steel Male Welding Technology ALEX Waterproof 1/2" TO 4" China Product Description IMC CONDUIT-Rigid Intermediate metal Conduit 1)Size:1/2" to 6" 2)Standard:According to American Standard UL6,ANSI C80.3 3)Application:It is for protecting cable wire 4)Material: Pre-galvanised steel or hot DIP galvanised 5)Quality:Good galvanized finished;smooth welding inside;Bend is no line broken 6)Guarantee:5 years quality guarantee &Best prices&Delivery on time