Physical and chemical properties of stainless steel, water pollution, ensuring clean water. Water tank, high strength, SpecificationsStainless Steel Water Tank / ... food-grade SUS304,SUS316L,SUS444,JYH21CT stainless steel,unique anti-rusting performance.Never Leaked Unique structure ... efficientAdopting 1.5-3.0mm stainless steel boards, significantly reduce the weight of the water tanks,make it ...