... :STEEL(1023/1045#) 2,the chain wheel got ISO9001:2000 3,we are OEM chain wheel factory 4,standard/non chain wheel Packaging Detail ... size and drawing.Specifications1.Gear processing:forging,machining(shaping, hobbing) 2.OEM manufacturer3.Good quality,reasonable price4.Prompt deliveryOur gear feature ... to send you a sample as your request. YH- industrial chain wheel