Nothing substantial.

3D printing is still in its infancy.

Just need to find a way to get the final product to be strong and rigid (to 'set' like a metal) would.

stainless steel particles with an optically-polymerized resin, then take the resulting objects and gently somehow replace some of the resin with molten bronze to obtain a stronger material

"It is heatproof to 831C/1528F degrees. Higher temperatures may significantly change material properties."

The melting point of bronze is around 950 °C (1742 °F) while the melting point of stainless steel is around 1510 °C (2750 °F), so the temperature warning suggests that the "printed stainless steel" still consists of discrete stainless steel particles, now somewhat better glued together by being encased in a bronze matrix, but perhaps not always uniformly encased ("Items closer to the bronze infusion start point will absorb more bronze")

I don't know how well the bronze solders the stainless steel particles together: the bronze deposits must be very thin, so if you imagine the bronze matrix alone, it will seem foamy, though in reality the "bubbles" are particles of stainless