As four-laser large-size and high-quality printing equipment, HBD 1000 is equipped with closed automatic powder circulation system, independent long-term multi-stage purification system, and highly integrated post-processing unit, etc. With these configurations, HBD-1000 is perfect realization for intelligent parallel 7×24h uninterrupted switching work, satisfying large-size and high-intensity, continuous production needs, which is suitable for aerospace, auto parts manufacturing and other fields.