Armstrong Hydraulic Cylinders Ltd is a hydraulic engineering company based in Co Leitrim, Ireland. We specialise in replacing/refurbishing hydraulic cylinders of heavy-duty industrial plant & machinery; quarrying, excavation and agricultural plant; fork-lift trucks, cranes, etc. We found your details via a web search looking for suppliers of Hydraulic Seals. Do you manufacture/supply Phenolic Resin wear rings and PTFE 15% Carbon (or Bronze) wear rings? Please contact us.