N 20 Aluminium crimp cap, silver, center hole Butyl dark gray/centrical PTFE-lamination gray Hardness: 55° shore A Thickness: 3mm pack of 100

N 20 Aluminium crimp cap, silver, center hole Butyl dark gray/centrical PTFE-lamination gray high purity Hardness: 50° shore A Thickness: 3 mm pack of 100