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Modern, long-lasting Nu-Blak cold oxidation liquid 100 ml. For spotting on worn or damaged parts of the weapon. Oxidation gives the steel surface a black matte shade. The blackening process does not affect the size of the oxidized object.

NU Blak No. 82 permanent cold oxidation cream op. 1000 g - Blackfast method. For punctual application to worn or damaged parts of the weapon. It gives the steel surface a matte black shade.