PB1-Good corrosion resistance, for use as bearing material, excellent mechanical and high fatigue strength. PB2 – Good corrosion resistance, for use in engineering components subject to friction Worm wheels in gear boxes. Slip rings in induction motors. Bushes, sleeves & liners in forge industries Bushes in sugar, cement & boiler machinery. Bushes & liners in machine tool industries Bushes & liners in steel plants & SPM's seamless tube Ind