... level codes:V3, V2, V1 3.Internal clearance codes:C0,C2, C3, C4, C5 1)Shield / closure: Open,Teflon Sealed,Rubber ... level codes: V4, V3, V2, V14)nternal clearance codes: C0,C2, C3, C4, C55)Material: AISI52100, AISI440C, AISI304, AISI316, Ceramic6)Retainer ...