Alum alloy seamless tubing; anodized, blk matte; 43.120 in.Oa lg; 2.084 in.Id; 2.250 in.Od; engrave complete circle every 6 inches, other inc' marks0.760, characters 0.150 h, lines 0.010 deep x 0.015 w; engrave legend amp pn 11584734 as shown on dwg; fill all engravings with permanent white finish
