We make and offer the capillary borosilicate glass tubes,the standard sizes are:

 Outer diameter:1mm,1.5mm,2mm;Wall thickness:0.1mm,0.2mm;Lenght:75mm,100mm,120mm;

 Sterilized with epoxyethane;It is used for the blood collection in hospitals.

Packed in seaworthy cartons,20,000pcs/carton;