... different types and specifications for your choice, also called ball bearing cage,ball bearing bushing ,& ball bearing bush,ball retainer & Die parts & die fittings for Press ... die punchOur customer can avail top class ball bearing cages from us. These cages act as a separator ... ALBS,ALS,ALBM,ALM,ALBT,ALT type );NO 3:Copper bushing(copper-colored, CUS,CUM,CUT type).Also each type with ...