... Copco. Ingsoll-rand and so on. A lot of types: Coupling sleeves R32 ,R22,R25,R28,R38,T38,T45,T51full-brigge ... ,semi-bridge,same diameter,adapter coupling, Coupling Sleeve TypesandvickSpecification(Length)No.R38-R38 R38-170T38-T387314-3355T38 ... T38-T45R32-R32F R32-R32Packing Detailed: Factory prices! Superior quality coupling sleeve with different thread type