Enamel colour belongs to a layer or filled field on metal; it does not mean that the metal itself changed colour. The V&A explains traditional enamel as finely ground glass fused to metal. For a branded product, the source must still identify the substrate, fill location and firing method.

Low temperature, high temperature, cloisonné and painted enamel are not interchangeable labels that can be assigned from a photograph. When a maker gives no temperature figure, this page retains its relative term. When the substrate is not stated, neither the enamel colour nor the border colour can identify it.

Feizhengjing Wanjia describes two final Kent Fat Cat COS Spider-Man schemes as painted enamel on a copper body. The maker applies enamel glaze to the copper body, fires it, paints the pattern, then polishes and gilds the piece. Black Spider-Man and classic Spider-Man are the two enamel schemes.

The same article separately offers aged-brass and white-copper versions. A shared Fat Cat form does not turn those versions into enamel. The source also leaves the glaze composition, firing temperature and copper grade undisclosed.

SAS EDC's public Heart King Charlie King black-zirconium release lists three configurations: base version A, luminous enamel version B and diamond version C. Version B uses low-temperature enamel and is explicitly luminous. That condition does not extend to A or C, or to the non-luminous David King enamel panels from the same brand.

The whole-product material list says zirconium and copper; the complete object weighs 90 g and measures 54.5 × 28.6 × 15.7 mm. The source does not identify the specific metal substrate beneath the enamel face cover, so copper is not assigned to that layer.

Bieyetang describes Quenched Fiery Eyes as a bronze substrate with an enamel-colour flame ornament, high-temperature fired and installed with an eyeball screw and nut. Here enamel belongs to an attachable ornament rather than the whole mechanical object.

Spine Armour in the same article separately fixes a titanium back bone to a bronze spine. The two accessories can form a set but remain separate component systems.

First locate enamel on the body surface, within a face cover or on a separate ornament, then check whether the metal below it is named. Firing, painting, gilding, diamond fill, luminosity and a replaceable structure can coexist, but they are different operations and conditions.

A photograph can show wire boundaries, filled colour and gloss. It cannot provide a glaze recipe, firing temperature or metal grade. The strongest version identification still comes from the source's direct link between product, component and option.