DF52-2P-0.8C DF52-2P-08C DF52-2S-0.8H DF52-2S-0.8H(21) DF52-3P-0.8C DF52-3S-0.8H DF52-3S-0.8H(21) DF52-4P-0.8C DF52-4P-08C DF52-4S-0.8H