Please contact me for more details.product nameSprocket,gear,gear rocks,Large diameter sprocket Gear, Chain Coupling,Synchronous pulley Large diameter sprocket Gear,Non-standardgear,Non-stander sprocketmaterialC45,40Cr,20CrMnTi,alloy,steel,carbon,steel,stainless,steel,iron casting,yellow metal, aluminumProduction processcasting,sand casting,pressure casting,forgr,weld,gravitation casting,investment moulding,CNC processing,Heat treatmentHigh frequency quenching, carburizing, electrophoresis temperingQuenching and tempering heat treatmentCold
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