O Rings Import Export Offers Air Compressors / Industrial Products

We are requesting spare parts for Dresser Rand, originally Siemens or a whole alternative engine similar to it, we already attached the Excel file with the reference parts and the qualities, and here I attached again, as well here are the references model numbers: Serial: 272-7-3923-F Name: 272BR 6/1 Serial: 272-10-3914-F Name: 272 B5/5

I want to ask on the piston ring Piston Ring of air compressor

Compressor