... material:bearing steel,GCR15 product detail description:1.Item:withdrawal sleeve 2.material: chrome steel & Gcr15 3.package: single carton, wooden ... external taper of 1:12. Up to size 40.6.application: F-I brand withdawal sleeve is widely used in machinery, damping ... processing equipment, sound insulation,drying plant etc. AH series withdawal sleeve