Huiyuchang CNC tools was established in 1998. Since its establishment, we have been engaged in CNC tool sales business. This welding blade dovetail knife is made of Sumitomo tungsten steel, with high hardness, smooth and sharp cleaning, and the knife body is made of 45 steel with good tensile and hardness; HYU insert alloy welding technology, using superb Taiwan technology, the interface is smooth and seamless, one-time precision welding, only a thin layer of brass residue than the general repeated welding strength is higher, there will be no welding cavitation bubbles; The hardness of the insert alloy material can reach more than 75°, and the washing is common ordinary steel/cast iron/aluminum, with good finish and accuracy; The surface is treated by sandblasting process, which inhibits the accumulation of iron filings attached to the cutter body and avoids affecting the washing and cutting progress. The provincial chip discharge groove is wider and the iron filings discharge speed is faster