... # 29# all types:200/14*3 300/14*3 300/14,19*2 400/14,19*2 300/14,24*2 400/14,24*2 ... ,vigreux,upper baranch tube(2)material:heat resistant 3.3 borosilicate glass(3)joints:14# 19# 24# 29#(4)all types:200 ... /14*3 300/14*3 300/14,19*2 400/14,19*2 300/14,24*2 400 ... /14,24*2 500/14,24*2 300/14,29*2 400/14,29*2(5)Manufacturer ...