DF53-16P-0.6C DF53-16S-0.6H DF53-18P-0.6C DF53-18S-0.6H DF53-20P-0.6C DF53-20S-0.6H DF53-2P-0.6C DF53-2S-0.6H DF53-32PCF DF53-3P-0.6C