... , TIG welding, easy installation, reliable quality, good finish. Super stainless steel CE certified, high efficiency, TIG welding, easy installation, reliable ... 60pcs, 120pcs;Inner tank: Food class SUS 304 2B stainless steel sheet with thickness of 0.5mm;Inner tank Dia.: ... corrosion;Outer tank shell: Stainless steel, Al-Zn zinc steel sheet, or Anti-corrosion Fluorine carbon steel plate;Outer tank Dia.: ...