Heavy Duty Series Cottered Type Roller Chains Wuyi Shuangjia Chain Co., Ltd. Base Info Usage:Transmission ChainMaterial:AlloySurface Treatment:PolishingFeature:Heat ResistantChain Size:1,2"*11,128"Structure:Roller ChainTrademark:shaungjiaOrigin:Zhejiang JinhuaHS Code:73151190 Description Pre:B Series Short Pitch Precision Roller Chains (duplex) Next:M Series Conveyor Chains for Machine