a Series Roller Chain (simplex) 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:Side Brackets for Frames System Scaffoldings Next:Leaf Chain/ Hoisting Chain Lh (BL) Series