Sprocket : 1. Manufatcured by our factory for more 10 years 2. all types of sprocket : such as DIN8188 ,DIN8187,sprocket Sprocket :1. Material: C45 & Cast Iron2. Supply standard and non standard sprockets according to European and American Standard & Drawing3. Superior quality & Competitive price & Prompt delivery4. Standard ISO9001:2000, 14001:2004 . DIN8187, DIN8188, ISO , ANSI , CUSTOMIZED . ...