120470 ⎘
Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
Surface treatment method for flux-brazed aluminum-made heat exchanger
#302Process for applying a multi-layer coating to ferrous substrates
#303Corrosion resistant trivalent chromium phosphated chemical conversion coatings
#304Surface-treated steel sheets of good white rust resistance, and method for producing them
#305Polymer derivatives for treating metals
#306Polymer derivatives for the treatment of metals
#307Supplementary corrosion protection for components made of organically precoated metal sheets
#308Aqueous agent for treating substrate, method for treating substrate and treated substrate
#309Surface treating solution for surface treatment of aluminum or magnesium metal and a method for surface treatment
#310Metal oxide and/or metal hydroxide coated metal materials and method for their production
#311Zinc-diffused alloy coating for corrosion/heat protection
#312Method of surface-finishing stainless steel after descaling
#313Coating composition
#314Weld mark treatment