Lab glassware Allihn Condenser 1>Material:Boro 3.3 2>With joints at the top and the bottom 3>ISO 9001 Lab glassware Allihn Condenser:(1)Material:heat resistant 3.3 borosilicate glass(2)All sizes:150/14,14; 200/14,14 300/14,14 200/19,19 300/19,19 400/19,19 500/19,19 600/19,19 200/24,24 300/24,24 400/24,24 500/24,24 600/24,24 200/29,29 300/29,29 400/29,29 500/29,29 600/29,29(3)High quality and ...