Group 1 - The core viewpoint of the article is that Hengxing Technology (002132) highlighted the primary application of diamond wire in the cutting of hard and brittle materials, particularly in the photovoltaic silicon slicing segment [1] Group 2 - Diamond wire is mainly used for cutting photovoltaic silicon, sapphire, semiconductor materials, and magnetic materials [1] - The photovoltaic silicon slicing segment is identified as the most significant application area for diamond wire [1]