Amazon.com: EMILYPRO Aluminum Disc Master Base Lap Plate 8" x 1/2" Arbor Grinding Pads for Flat Abrasive Wheels/Backer-Disc/Slant Cabber Polishing Machine - 1 Pack : Industrial & Scientific
6061 T651 Aluminum Sheet Metal 15 x 15 x 1/8 (0.125") Inch Thickness Rectangle Metal Plate Covered with Protective Film, 3mm Aluminum Sheet Plate Flat Stock, Finely Polished and Deburred: Amazon.com: Industrial & Scientific
Aluminium Sheet and Plate – WMH GROUP GERMANY
Amazon.com: 1/4" x 4" Aluminum Disc : Industrial & Scientific
Aluminium Rundrohr 8 x 1,0 mm - B&T Metall- und Kunststoffhandel GmbH