73458774
Dec 27, 1983
Jan 29, 1985
Caustic Chemical Preparations Used to Etch Aluminum, Magnesium, Steel and Titanium Alloys; Preparations Used to Form Peelable Protective Mask to Protect Against Corrosion Action of Caustic and Acidic Solutions Used to Etch Aluminum, Magnesium, Steel and Titanium Alloys; Preparations Used to Release Adhesive Bond Between Mask Coating and Metal to Facilitate Removal of Mask in Etching Process
Chemicals