... 409L,410,410S,416,420,420JS,430,904,904Letc. 2.products chemical composition3.Manufacturing Processe4. Main Equipments of Stainless Steel Sheet ... Use soap, weak detergent or warm water to remove surface dust, dirt(4) In addition to the surface of the binder with alcohol ... 10% nitric acid or abrasive detergent in addition to the surface of the embroider caused by the dirtIf you have any questions,please ...