With semi-trailers we carry unpacked bulk cargo, usually small fractions (from ~ 0,2 mm) of cargo for which the transfer requires sealed tanks. Such goods are usually called all non-stick, small fractions and unladen goods such as: plastic (PET, PVC, LDPE, PPE, polyethylene, polypropylene) granules, grains, malt, soda, starch, fertilizers, compound feed, etc. which are not packed.