... with straight side plate: 1, Material: 40Mn 2, Color: Natural 3, The kind of chain has many models C12B-1 roller chain with straight side plate ... ' specification:1, Plate material: 40Mn; Pin: 40Cr; Bush and roller: 10 ... , MOQ: 500M7, Delivery time: 50 days. C12B-1 roller chain with straight side plate