T11 Portable tank is for general Purpose, using for most liquid Chemicals including solid chemicals with lower melting point, liquid food like Wine, Cooking Oil, etc. 

Normally Capacity between 24-26 CBM.

There is a bottom outlet at the lowest of the tank.

T14 Iso Tank also can carrie most Liquid Chemicals, It is almost the same as T11, but without Bottom Outlet. Normally Capacity between 24-26 CBM.

Swap Body Tank is Bigger than Iso Tank, which usually can not be loaded into Container Vessel, it is designed for Road Purpose, it is more popular in European inland logistics.

T75 Gas Tank is designed as High Pressure and Low Temperature liquefied Gas, like Oxygen, Helium, Nitrogen, Carbon Dioxide, Etc.

T50 Gas Tank is designed for High pressure and low temperator Gas.