BESTEEL® 171-N Curtain Track
ADC Model 171-N curtain track is identical to ADC Model 170 except it employs No. 1737 Nylon Ball-Bearing Single Carriers and No. 1738 Nylon Ball-Bearing Master Carriers which provide an easier and quieter operation and are used in place of the standard No. 1701 and No. 1702 polyethylene carriers.