... . competitive price 5. factory direct sale 1. 40Mn quality alloy steel2. carbonized harden 3. competitive price4. trend ... your sample or drawingMain products as the following1)roller chains: A series(12.7-63.5mm pitches),B ... -A,SK-24)double pitch transmissions v& conveyor chains :2040,2042,2050,2052,2060,2062,2080,2082 ... .629.765063019.0511.9112.5724182.43537800 high quality industrial machine chains