Kara semitrailers suna ga dandano - dandano aikin karkashen daidai ne yadda an yi amfani da watawa da gas. Suna ne a cikin samun traktar da semitrailer dai dai mai tsarin hanyar rubutu, suna ne a matsayiƙwar shirye na wannan shirye daidai a kan samun wannan aiki. Rubutunka suna ne a yi amfani da matakinai masu, aluminia, ko matakinai komposit, depending yadda rubutu ne yanayin, ya kamata fuels, kimikali, produktun abubuwan, ko wadannan shai. Wannan semitrailers suna ne aiki da pumping systems, valves, da hose don amfani da rubutu. Safi features, including double - walled tanks, emergency shut - off valves, da leak - detection systems, suna ne aiki daidai don saukar rubutu da safe transit of goods, making tank semitrailers sabon labarar daidai don transport bulk fluids.