Side joint is angled at 90°. Interior diameter: 31mm. Joint Size:14/20.This Dewar condenser is for use with dry ice or liquid nitrogen cooling agents. ● Material:Borosilicate glass ● Color:Clear ● Designed with the same size of standard ground joint at bottom and side ● Has standard taper 14/20 outer joint on the side at a 90°angle, and standard taper 14/20 inner joint at bottom ● Joint size 14/20:14 refers to joint diameter,20 refers to joint height,other specifications and so forth
危险品化学品经营许可证（带存储）