Bids Are Invited For Price Registration Intended For Hiring A Specialized Engineering Company, To, On Demand, Perform Work, Renovation, Recovery, Expansion, Demolition, Paving, Accessibility, Walking, Lighting, Adaptation And Building (Small Renovations), Providing Parts, Equipment, Materials And Labor, Without Exclusive Dedication Of Labor, As Established In Service Spreadsheets With Various Inputs Described By Sinapi.