... lining plastic(or rubber) and plastic are widly adopted.3.Tank shaped use the advanced welding technology, end socket arcbutt ... , gas, butane, dimethylmethane, propylene,etc.6.Cross section of tank could be oval, round and round-square.Heat insulation and ... semi-trailer,van semi-trailer,bulk cement transportation semi-trailer,container semi-trailer,chemical liquid semitrailer,etc more than 300 types ...