The "flash distillation drying tower and crushing drying device " declared by Changzhou One-Step Drying Equipment Co., Ltd. passed the examination of the State Intellectual Property Office and obtained a utility model patent certificate. The flash evaporation drying tower patent number is: ZL2011-2-0378994.2, broken The drying device patent number is: ZL2011-2-0379010.2. Pans, Stainless Steel Fry Pan with Lid, China Pans Jiangmen Yuesheng Metal Products Co., Ltd. , https://www.hkbestgain.com