Round-bottom Flasks, Two-neck, Side Neck Angled , C. Neck NS 14/23 Side Neck NS 14/23
Round-bottom Flasks, Two-neck, Side Neck Angled , C. Neck NS 14/23 Side Neck NS 14/23
DIN 12394 and in addition to DIN standard. With one central and one 20° side angled ground joint necks as outlined below.
