Product name: 28mm butyl rubber stoppers
Color: Grey
Function: Used for infusion bottles
Raw materials: Bromobutyl rubber from Exxonmobile Chemical
Introduction
Cervical-diameter 18.0 +/- 0.2mm;
Corona-diameter 27.1 +/- 0.3mm;
Corona- thickness 3.8 +/- 0.3mm;
Total thickness 11.8 +/- 0.4mm