... and sprocket 3.zinc surface or other as customer require roller ChainOur own factory is found in the year of 2003 ... : carbon steel, stainless steel Standards: ANSI, DIN, ISO, and BS Type: DIN766, DIN763, DIN5687, DIN82056, DIN5686, DIN5685, 40, and 70 grade ... , ServiceOur factory addressOur local chain drawing A/B series plate roller chain