JORDAHL - CAD for Plain Back Channels
DWG 2007 Format JORDAHL® Plain Back Channels: JM K 21/12, K 28/12, K 28/15, K28/28, 36/20, 36/36, 38/17, K 40/40, K 40/22, K40/25, K 41/41, K 48/26, K 50/30, K 53/34, K72/48 JM W40/20, W 50/30, W53/34, W 72/48 JXM 53/34, 38/23, 29/20 JZM 41/22