Description:[Size] - 73mm (2.87 Inch) OD, 56mm (2.2 Inch) ID, 1mm (0.04 inch) Thickness[Application] - Widely used for replacing the piston ring to the air compressor.[Advantage] - The piston ring is characterized by high wear resistance, durable and long service life.[Instruction] - 1. Disassemble the piston cylinder to remove the old air compressor piston ring in the state of decompression and pressure.2. Clean the piston cylinder and piston rod then replace the old piston ring with the new one.3. Put the components back in place and tighten in order.[NOTE] - 1. Please perform maintenance and parts replacement in the state of decompression and pressure.2. Please confirm the required size before ordering; 3. Please check and tighten the related mounting screws every 1-2 weeks of operation.
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