Error:获取返回内容失败，Your session has expired. Please reauthenticate.How to Use Sprocket for Conversion OptimizationThe sprocket is usually attached to the shaft with…
Freewheel Speed: 12Content: ALLOY+MetalProduct Variety: 12sColour: Rainbow-blackEmployed for: MTB Bike Street Bike Specification itemcassette sporcketFreewheel Speed12MaterialALLOY+SteelPlace of OriginChinaBrand TitleSUGEKCOLORRainbow-black Firm…
Product Description Product DescriptionHeat treatmentHarden teeth, tempering, quechingSurface treatmentzinc plated, blacken, phopharization, carborizedProcessForging( casting)---lathe- teeth shaping---finishing---oil washing---Packing ,made by CNC…