Laboratory glassware 12*55,12*60,12*75,12*100,15*100,16*150,18*150,18*200,20*150,20*200,25*100.... NO.NAMESpecifications Amount KH904Glass tube φ12*75 5000 KH904Glass tube φ12*100 4000 KH903 Glass tube φ13*100 3500 KH903Glass tube φ15*100 2500 KH902 Glass tube φ15*150 1700 KH902 Glass tube φ18*180 1000 KH901 Glass tube φ20*200 800 Laboratory glassware