This contemporary tank trailer was built in line with the latest findings when it comes to security precautions. "TOPAS" means "Tank automobile with optimal passive and active security installments". Included in these are: ABS, low gravity-center, high-positioned break lights and framework security built-in aerodynamic shape. The tank has elliptic double wedge form and for fat reasons is made of light metals. In the future, due to their extremely inflammable payload, most tank trailers will soon be integrated similar form.