"V" packing for use in-- pumps and compressors in chemical service Rod packing for use in-- pumps 7 compressors in chemical service "O" rings for use in pumps and compressors in chemical service Compressor rings for use in-- pumps and compressors in chemical service wear rings for use in-- pump and compressor in chemical service piston cups for use in -- pumps and compressors in chemical service piston rings for use in pumps and compressors in chemical service