... case, steel gold plated case,brass polished case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL ... bezel, steel bezel, chrome plated bezel, brass bezel, steelroll ring (or bayonet threaded ring), type: snap on, roll ringTUBE&SOCKET: steel with ... case, steel gold plated case,brass polished case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL ...