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Specifications

butyl rubber stopper 28mm for infusion bottles
 
Specification:
  Specification                         
 
  28-B 
                
     Tolerance            
  Diameter of the top part    26.6         ±0.3
  Thickness of the part      3.8         ±0.3
  Dimeter of the stem    18.0         ±0.2
  Total teight    11.8         ±0.4
 
Features:
1> High purity degree;
2> Low punching force;
3> Good tightness and keeping good touch with the puching pin;
4> Good function of acid-resistant & alkali-resistant.
 
 Quality Control:
♥Designed as per GMP standards,the workshops of vulcanization,die cutting,washing and packaging are up to the relative cleanness classes.
 
♥Quality mangement system established and consummated as per GMP standards.
 
♥Automatic pre-forming and slice cutting process is adopted.
 
♥Advanced full automatic vacuum making vulcanization process is adopted.
 
♥Aubomatic stopper washing production line with powerful vibrating and blowing washing functions.
 
♥Successful compatibility test for rubber stoppers and medicine.