E52-CA20B D=3.2 E52-CA20B D=6.4 E52-CA20B-3.2 E52-CA20B-6.4 E52-CA20B-N D=3.2 E52-CA20B-N D=6.4 E52-CA20B-ND3.2 E52-CA20B-ND6.4 E52-CA20C D=3.2 E52-CA20C D=4.8