The individual technologies SGE employs in GC capillary column manufacture are:Drawing of the precision fused silica capliiary tubing.Developing asnd synthesising the speciality polymer stationary phases.Performing the speciality chemical treatment of the fused silica surface so that it is inert and compatible for the cross-linked stationary phase.Coating and cross-linking the polymer stationary phase.Quality testing of every completed capillary column to rigorous standards.