Here you can find following information:
> Laboratory screw joints and swivelling screw fittings
> GL-fittings and screw caps
> GL system for explosion protection
> Distributors
> GL srew joint system: assembly
> GL screw joints system up to 5 bar
> Determination of thread types
> HPLC
URL of this page: http://www.bola.de/en/technical-information/screw-joints.html