Description:
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(1) - Air conditioning apparatus repair, boiler cleaning and repair, burner maintenance and repair, industrial production machinery installation, maintenance and repair, elevator installation and repair, heating equipment installation and repair, installation of interference suppression in electrical apparatus, pump repair, rebuilding partly worn or destroyed engines, rebuilding partially worn or destroyed machines, riveting, rust-proofing, sanding; blacksmithing, burnishing by abrasion, cadmium plating, chromium plating, coppersmithing, electroplating, engraving, galvanization, gilding, glass-blowing, gold-plating, grinding, metal casting, metal plating, nickel plating, silver plating, soldering, tin-plating, vulcanisation; development of production methods and production lines and the apparatus belonging thereto; material testing; computer programming; technical research; engineering services dealing with budgets, estimates, research and surveys; research and development of new products.
(2) - Air conditioning apparatus repair, boiler cleaning and repair, burner maintenance and repair, industrial production machinery installation, maintenance and repair, elevator installation and repair, heating equipment installation and repair, installation of interference suppression in electrical apparatus, pump repair, rebuilding partly worn or destroyed engines, rebuilding partially worn or destroyed machines, riveting, rust-proofing, sanding; blacksmithing, burnishing by abrasion, cadmium plating, chromium plating, coppersmithing, electroplating, engraving, galvanization, gilding, glass-blowing, gold-plating, grinding, metal casting, metal plating, nickel plating, silver plating, soldering, tin-plating, vulcanisation; development of production methods and production lines and the apparatus belonging thereto; material testing; computer programming; technical research; engineering services dealing with budgets, estimates, research and surveys; research and development of new products.
(3) - Air conditioning apparatus repair, boiler cleaning and repair, burner maintenance and repair, industrial production machinery installation, maintenance and repair, elevator installation and repair, heating equipment installation and repair, installation of interference suppression in electrical apparatus, pump repair, rebuilding partly worn or destroyed engines, rebuilding partially worn or destroyed machines, riveting, rust-proofing, sanding; blacksmithing, burnishing by abrasion, cadmium plating, chromium plating, coppersmithing, electroplating, engraving, galvanization, gilding, glass-blowing, gold-plating, grinding, metal casting, metal plating, nickel plating, silver plating, soldering, tin-plating, vulcanisation; development of production methods and production lines and the apparatus belonging thereto; material testing; computer programming; technical research; engineering services dealing with budgets, estimates, research and surveys; research and development of new products.
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