We apply the most up to date welding procedures: UP-automatic, E-hand, MAG, MAG pulse, WIG pulse-hand, WIG-pulse-automatic and plasma, using diverse turntables up to a diameter of 4000 mm/40 t and tank rotating devices up to 6500/200 t. Furthermore, UP and plasma automatic welding machines for longitudinal and circumferential welds up to diameters of 8000 mm are available for optimal processing. Plasma welding is applied for diameters between 20 and 6500 mm, UP welding for diameters up to 8000 mm. In addition, we have the possibility to use WIG pulse pipe welding.