Ç1)Double Valve, Normal
Ç2)Double Valve, Simple
Ç3)Double Valve, Tubular
Ç4)Double Valve, External Tubular
Ç5)Double Valve, Stepped PE
Ç6)Double Valve, Stepped Thin Paper
Ç7)Double Valve, THERMO
Ç8)Double Valve, Reduced Paper
Ç9)Double Valve, Reduced PE
Ç10)Double Valve, Reduced PE/LA
b: 7 - 22 cm
l : 9 - 24 cm
