LightPolesPlus.com RSAC series light poles are manufactured in the United States and deliver the highest quality available to the commercial and industrial markets. Round-straight aluminum burial light poles feature 0.125" to 0.250" shaft construction fabricated from seamless 6063-T6 aluminum extrusion and an embedded portion with protective coating. Factory applied finishing options include industrial-grade paintcoat, satin brushed aluminum, anodizing and custom architectural colors.