Metal sand-blasting and shot-blasting plant and machinery, Machinery and equipment for metalworking, Metals, Machinery & Engineering, Micro-blasting plant for the clock, watch and jewellery industry, Welding services for plastic materials, Industrial subcontractors, Welding services for plastic clocks, watches, jewellery and religious articles, Metal surface treatment and machining contractors for the clock and watch industry, Maintenance and repair services for industrial equipment, Electro-polishing/electro-brightening services for jewellery and watch components