NS-Sechskant-Hohlstopfen, NS 14/23, mit SIcherungsrille, Borosilikatglas, DIN 12252
ST-hollow-stopper, ST 14/23, hexagonal plate, safety nut, borosilicate glass, acc. to DIN 12252
ST-hollow-stopper, ST 14/23, hexagonal plate, safety nut, borosilicate glass, acc. to DIN 12252