carbon steel coupling sprocket 1.STEEL(1023/1045#) 2.treatment on quenching 3.OEM 4,standard/nonstandard YH- industrial chain wheel steel harden teeth couplimg we produce all kinds of international standard sprockets and gears, and we also can made gears and couplings as your...

couplings 1,material:steel(A3/1045). 2, got ISO9001:2000 3,we have our own factory 4,standard or nonstandard spur gear  and couplingswe can made nonstandard gear and sprocket according to your drawing or pictures.we are a trading company but we have our own...