... square with international standard3,inside of the tanks are adopted advanced butt welding technique .after tank body being formed ,it’s inspected ... ,stable gravity and safe vehicle transport.4,Alcohol and chemical tanks are adopted stainless steel of 4mm,5mm,6mm,and 8mm ... imported from Korea5,Vitriol, hydrochloric acid and alkaline fluid tanks are made of plastics and thickness is 12mm~22mm.6 ...