The supervision over welding works is conducted within the competencies of the International Welding Engineer IWE and International Welding Inspector IWI-C according to the PN-EN ISO 14731 norm – Welding supervision – Tasks and responsibilities. We prepare the Welding Procedure Specification WPS according to the PN-EN ISO 15609 norm. Prowadzimy nadzór inspektorski nad prowadzonymi pracami spawalniczymi zarówno na etapie prefabrykacji wyrobów, jak i w trakcie montażu konstrukcji stalowej. [eng] The supervision over welding works is conducted in the product prefabrication stage as well as during the installation of the steel construction.