The bottom loading arms are used to load/unload tank trucks and railway tankers for fuels and industrial liquids. This transfer system offers the advantage of operating directly on the ground instead of getting on the tank and thus avoids the formation of electrostatic charges generated. Construction materials range from aluminum alloys and cast iron to special low temperature steels (KCS), stainless (AISI 304 e 316), to respond to the numerous applications in the sectors: Oil&Gas, chemical and food.