... 2.various surface finishing 3.machining by customers'request Anodized aluminum pipe's specification: Radian 20 degrees, 25 degrees,35 degrees ... ,silver anodize,black anodize, etc.ApplicationWe make various of aluminum pipes used for Household items, industries.Machining Machining by ... .B. It's made of aluminum alloy, not rest easy.C. It's aluminum alloy bent pipe, good for many ways, for ...