GGT stands for Reliability and Quality Summary of our services: - All kinds of heat treatment executed by our service team - Manufacturing and sales of heat treatment units - Construction of temporary furnaces on site - Refractory dryouts and post weld heat treatment by high velocity gas burners - Hire of heat treatment units and ceramic heaters - Repair of heat treatment units and ceramic heaters - Supervision on sites - Calibration of temperature recorders and control units - Hardness testing