... chassis for the refitting if practical2,the tanks are made of refined 4mm,5mm,6mm, ... round square with international standard3,inside of the tanks are adopted advanced butt welding technique .after ... and safe vehicle transport.4,Alcohol and chemical tanks are adopted stainless steel of 4mm,5mm,6mm ... Korea5,Vitriol, hydrochloric acid and alkaline fluid tanks are made of plastics and thickness is 12mm ...