Welding, construction and maintenance works in following areas:•Petroleum industry;•Chemical industry;•Pharmaceutical industry;•Cellulose industry;•Marine industry;•PET;•Gas pipelines;•Nuclear Power;•Heat Networks;•Water supply;Welding, construction and maintenance works of various difficulty and purpose:•WPS/PQR qualification;•Welders qualification;•Welding School;•Installation, welding and maintenance of the technological pipeline;•Construction and welding of structural metal constructions;•Installation, welding and repair of the containers;•Welding of aluminium and stainless steel elements;•Disassembly of obsolete structures and equipment, or their replacement by new;•Ship hull welding.Welding coordination:•Contract evaluation•Assessment of technical requirements•Design assessment•Evaluation of the main materials and subsidiary consumables•Production planning•Equipment selection•Inspection planning•Organization of the welding process•Inspection (testing)•Assessment of the welded joints and dimensions•Preparation of supplementary documentation