China BS30-C208A Double Plus Chain roller chain bolt

Solution Description BS30-C208A Double In addition Chainone.Variety: double additionally chaintwo.Plate substance: 40MN carbon steelthree.Roller material: plastic4.Velocity: 1.5X,2X,2.5X or 3Xfive.Specification:Pitchtwenty five.4  mmModest roller diameter11.ninety one...