On January 8th, Gelonghui reported that Sf Diamond Co., Ltd. (300179.SZ) stated on the investor interaction platform that the company's main Business consists of resource mining/Construction products, precision processing products, and CVD Diamond. Among them, the ultra-hard cutting tool Business is an important part of precision processing products and is one of the company's strategic focuses. Ultra-hard cutting tools perform excellently in precision and ultra-precision, high-speed and ultra-high-speed processing operations, and can be widely used in high-precision components processing in various fields such as Autos, Aviation, rail transit, and electronic information.