BK1/S506-500-R BK1/S506-50-R BK1/S506-5-R BK1/S506-5-R-LB BK1/S506-6.3-R BK1/S506-630MA BK1/S506-630-R BK1/S506-63-R BK1/S506-800-R BK1/S506-80-R