material:borosilicate 3.3 Volume:1ml,2ml,3ml,5ml,10ml,50ml,25ml,100ml 1:Place of Origin: China2:Material:heat resistant 3.3 borosilicate glass , heavy wall. Glass stopcock or PTFE stopcock.3:Size:Types: automatic burette, Micro-burette, burette with PTFE stopper, Acid burettewith stopper, alkaline burette with stopper4:Capacity:1ml, 2ml, 3ml, 5ml, 10ml, 50ml, 25ml, 100ml 5:Scope of application: ...