滾柱軸承的組裝內部組件,由框架或外殼組成,用於間隔和保持軸承的滾動元件、滾柱(經修改)以及軸承中的滾動元件滾柱(經修改)。
material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications reference number differentiating characteristics, zzzy criticality code justification