Contract of type Service and Package (P.F.), operation and maintenance of heating installations, production of e.c.s., ventilation, air conditioning and water treatment, with clause of Wholesale Maintenance and Renewal (G.E.R.) of equipment
Contract of type Service and Package (P.F.), operation and maintenance of heating installations, production of e.c.s., ventilation, air conditioning and water treatment, with clause of Wholesale Maintenance and Renewal (G.E.R.) of equipment