Proprietary melamine-based polymers; melamine-based polymers used as a supplement for chemical processes; melamine-based polymers for use in metal treatment processes; melamine-based polymers for use in salt bath nitriding; melamine-based polymers for use in metal treatment; melamine-based polymers for use in metal coating; melamine-based polymers for use in surface hardening and corrosion protection of metals

'base':4,8,19,29,39,48,57 'bath':35 'chemic':15 'coat':54 'corros':65 'harden':63 'melamin':3,7,18,28,38,47,56 'melamine-bas':2,6,17,27,37,46,55 'metal':24,44,53,68 'nitrid':36 'polym':5,9,20,30,40,49,58 'process':16,26 'proprietari':1 'protect':66 'salt':34 'supplement':13 'surfac':62 'treatment':25,45 'use':10,22,32,42,51,60

Material treatment by means of salt bath nitriding; hardening of materials by means of salt bath nitriding; hardening of metals; surface hardening of materials by means of salt bath nitriding; surface hardening of metals; corrosion protection of metals by means of salt bath nitriding

'bath':7,16,29,43 'corros':35 'harden':9,18,22,32 'materi':1,11,24 'mean':4,13,26,40 'metal':20,34,38 'nitrid':8,17,30,44 'protect':36 'salt':6,15,28,42 'surfac':21,31 'treatment':2

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