M660G leads large-size pure copper and copper alloy additive manufacturing with a 660*660*1300mm molding size and up to 1.2m print height. It enables high accuracy and consist printing with four self-developed continuous sigle-mode green fiber lasers and a well calibrated multi-laser precision optical system. The intelligent multi-laser splicing tecnology ensures ≤ 5% performance variation in splicing areas, enhancing print consistency. Designed for long-term, high-load operation, M660G excels in producing large, high-quality components from pure copper and other highly reflective metals, delivering efficient and reliable metal additive manufacturing.