... double-layer cauldron. Now it has been widely applied in food processing such as candy, medicine, dairy, alcohol, cake, ... stainless steel ( SUS304/SUS316L) Usage:1. Be widely applied in food processing such as candy, medicine, dairy, alcohol, cake, sweetmeat, ... Welding Normal Pressure Vessel (JB/T 4735-1997)>>;D. << Food Machinery Safety and Heath (GB 16798-1997)>>. Dairy Product Boiling Kettle