transmission chain bush 1.excellent character for conveyor chain system 2.Steel part 3.Good quality 4. Machined part transmission chain bush1. Material is optinal:15CrMn , 20CrMo , 2Cr132. Details as below catalogAdvantages:1. Light weight,convenient to transport and handle2. High strength3. Corrosion resistance4. Easy to install5. long lifespan6. low cost7. OEM/ODM welcomeCompany Introduction1. ...