1543T-D-6-B 1543T-D-6-AL 1543T-D-4-SS 1543T-D-4-S 1543T-D-4-B 1543T-D-4-AL 1543T-D-3-SS 1543T-D-3-S 1543T-D-3-B 1543T-D-3-AL