1.Material:45# steel A3 steel 2.Standard: DIN, ANSI, BS, JIS 3.Certification:ISO 9001:2000 4.15 years experience There are various kinds of motorcycle sprockets in our factory, and our products are professionally matched to HONDA, SUZUKI, YAMAHA, KAWASAKI, and so on.Main information as follows, for more information, pls contact us freely.1, Passed ISO 9001:2000 standard. 2, OEM motorcycle ...