Volumetric flask

One of biggest manufactory laboratory glassware established in 1967 in China. Material is borosilicate glass, neutral glass and normal glass (including amber glass). There are more than 200 varieties and about 1,000 specifications of the products. Our company has participated in drafting and revising state standards of glass instruments. For VolumetricFlask the spes is as following 1621A Volumetric flasks with One graduation mark with glass/PE stopper ISO1042, DIN12664 1621B Volumetric flasks with One graduation mark with glass/PE stopper ISO1042, DIN12664 We can also make the above using Borosilicate glass ,the grade has A and B If youare interested in our products, please do not hesitate to contact us, we will give you prompt attention.