Acquisition Of Ergonomic Chairs For Office For The Project: Improvement Of Institutional Mission Services In The Municipality Of Mariano Melgar Of The Mariano Melgar Center, Mariano Melgar District, Province Of Arequipa And Dep - Acquisition Of Ergonomic Chairs For Office For The Project: Improvement Of Institutional Mission Services In The Municipality Of Marian Arequipa And Department Of Arequipa, Ii Stage, Cui N ° 2591448