Drouzhba AD (Drouzhba Co) is a Bulgaria-based company that is principally engaged in the production of pistons, piston rings, piston pins and piston sets conventional for automobiles, trucks, engine-driven conveyances, compressors and road construction machines. It also specializes in the production of aluminum casts and piston coatings, including tin coating, phosphate coating, hard anodizing coating, graphite coating, pistons, piston rings, piston sets; piston sets with cylinder liners and aluminum alloys. Drouzhba AD operates in both Bulgarian and foreign markets.
DRUZHBA AD 
