Supply Contract For Three R.S.U Collection Trucks Fed By Gas Of Renewable Origin Or Cng, Of The Lateral Load Of 23 M³ Capacity For The Municipalities Of Laguna De Duero, Boecillo, Viana De Cega, Santovenia De Pisuerga And Cabezón De Pisuerga Belonging To The Commonwealth Of Urban General Interest Valladolid And Alfoz.