Specification :

Product name: 32mm butyl rubber stoppers
Color: Grey
Function: Used for infusion bottles
Raw materials: Bromobutyl rubber from Exxonmobile Chemical
Introduction
Cervical-diameter 23.6 +/- 0.2mm;
Corona-diameter 31.0 +/- 0.3mm;
Corona- thickness 4.0 +/- 0.3mm;
Total thickness 12.2 +/- 0.4mm