Amazon.com: uxcell Aluminium Sink Cooling Fin Heatsink 50mm x 50mm x 20mm Silver Tone : Electronics
Amazon.com: Front Fork Barrel Shaft, 20mm to 15mm Front Hubs Tube Shaft Axle, Aluminium Alloy Accessories for Bicycle(100 Open Gear) : Industrial & Scientific
6Pack 6.6FT/2 Meter Plaster-in LED Drywall Aluminum Channel with Flange for 12mm Strip Lights, Recessed Aluminium LED Profile with Clip-in Diffuser and End Caps: Amazon.com: Tools & Home Improvement
Amazon.com: MXL 80T Timing Pulley, 8/10/12/14/15/16/17/20mm Inner Bore, Fit for Belt Width 6/9/10mm, Aluminium Pulley (Size : Bore 20, Width : for Belt Width 10mm) : Industrial & Scientific
Amazon.com: 20mm 4 Flute HSS and Aluminium End Mill Cutter CNC Bit : Industrial & Scientific
Amazon.com: OdiySurveil(TM) 100 x 40 x 20MM Aluminium Heatsink Radiator Diffusion Cooling Fin Comb Heat Sink Cooler : Electronics
2PCS 5mm to 6mm Aluminium Plum Flexible Shaft Coupling 25mm Length 20mm Diameter Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor: Amazon.com: Industrial & Scientific
Ks-Tek 20mm Aluminium Cap for Crimp Glass Vial Aluminium Sealing Top (Green) 100pk: Amazon.com: Industrial & Scientific
Vial Crimper,20A 20mm Manual Vial Crimper Aluminum&Plastic Flip Off Caps Hand Sealing Machine (20mm Aluminium-Plastic Cap) - - Amazon.com