DF13-2C-1.25C DF132N12KOF DF132N14KOF DF132N16KOF DF132N18KOF DF13-2P-1.25D DF13-2P-1.25DS DF13-2P-1.25DS(20) DF13-2P-1.25DS(25) DF13-2P-1.25DS(50)