... and PS and Glass test Size:12*60, 12*75, 12*100, 13*75, 13*78, 13*100, 15*100, 16*100 Test tube Made of PP ... tubes1, Manufactured from high quality polypropylene and Polystyrene2, Diameter from 12 to 16mm,length from 60 to 102mm3, With a series ...