For use on a wide variety of apparatus with higher mechanical strength requirements.– With standardised GL thread according to DIN 12216 – thick-walled – Safe and easy sealing and loosening of glass-glass components – Grease-free working possible – Glass articles for further processing For use on a wide variety of apparatus with higher mechanical strength requirements.– With standardised GL thread according to DIN 12216 – thick-walled – Safe and easy sealing and loosening of glass-glass components – Grease-free working possible – Glass articles for further processing