Here’s How the StepUp Trolley Was Born Paltrav Snc is an Italian company that has been operating for over 40 years in the marketing of construction materials and heating systems. In order to meet its own requirements for the transportation and easy delivery of materials, a sturdy and versatile trolley was conceived. With the development and improvements it saw over the years, a decision was taken to create a unit dedicated to its industrialization, production and sale, first in Italy and later abroad.