Standard Requirements: MT/T - 929, DIN22255 Number: 26*92 - C MCB220261 30*108-C MCB220252 34*126-C MCB220268 38*126-C MCB220259 38*137-C MCB220260 42*146-C MCB220253 48*152-C MCB220251 Scope of Application: Coal Mining Coal Machine, Scraper Transport Plane, Scraper Forwarding Machine, Excavator, Coal Striking Machine, etc. d. Main characteristics: the outer width of the vertical ring is reduced, the distance between the chain and the gate is increased, thereby reducing the appearance of martensite friction effect, reducing the working losses of the chain.