Seam annealing of longitudinal pipe welds, full-body annealing of magnetic and non-magnetic pipe products, preheating and postheating of various workpieces, longitudinal seam welding of pipes from OD 3/8”-26”/10 mm – 660 mm, brazing of heat transfer tubes (boilers, refrigerators and HVAC), preheating and stress relieving of oil well tube ends, coating and post weld heat treatment (PWHT) of oil and gas pipelines, in all sizes and alloy types.