13mm Rubber stopper: Standard: ISO and USP standard. Spec.:13mm,20mm,28mm,32mm. Color:grey or red.

Rubber stopper:

 Standard: ISO and USP standard. Spec.: 13mm, 20mm, 28mm, 32mm. Color: grey or red. Yearly output: 3.6 billion.

 Quality control:    Modern equipment and technology.    Whole course controlled by ISO9001:2000, ISO14001:2004, OHSAS18001:1999 standard.    Workshop: clean modern workshop.

13mm rubber stopper