Metal powder bed fusion remains the dominant metal 3D printing route. On the equipment side, vendors are competing on parameters around multi-laser systems, large-format builds, copper alloys, and highly reflective materials, while research focuses on hard-demand scenarios such as lattice structures, point lattices, heat exchangers, and lightweight brackets. Some teams have integrated in-situ monitoring tools—acoustic emission, melt-pool radiation, and high-speed cameras—into the build chamber to enable early-stop intervention before interlayer lack-of-fusion evolves into an irreversible defect. A printed metal part is only a semi-finished product; heat treatment, hot isostatic pressing, machining, and support removal each add cost, and the process window is narrow: too low a temperature leaves residual stress incompletely relieved, while too high a temperature causes grain growth and degraded properties. How to keep oxygen content stable after repeated powder reuse and how to control shape in multi-laser overlap zones are the real questions in equipment-process coordination. The continuous-fiber route, meanwhile, is tackling interface wetting, porosity control, and fiber orientation prediction, paired with topology optimization for small-batch validation of drone arms and robot links—but material databases lack allowable values, so structural engineers are reluctant to sign off. For the metal additive manufacturing supply chain, the focus of competition has shifted from “getting the nozzle to move” to process-window repeatability, defect statistics and fatigue life, and standards and data traceability. Multi-laser large-format equipment, copper-alloy thermal management parts, medical implants, and superalloy components are clear landing points, but “print-and-done” remains marketing talk—post-processing and powder recycling determine whether batch production is possible. Value for powder buyers: (1) Prioritize locking in powder suppliers with stable lot-to-lot oxygen content and traceable reuse cycles—don't just look at first-article inspection reports; (2) As demand for copper alloys and highly reflective materials picks up, confirm particle size distribution and laser compatibility with powder makers in advance; (3) Build powder recycling and replenishment ratios into cost models, and treat post-processing and quality traceability capabilities as hard criteria in supplier screening.