Hard alloy nozzle: the product with superfine tungsten carbide material for precision machining, the hardness up to HRA90 above, make camber was as high as 2300N/mm. The use of special equipment for processing hole precision grinding and precision grinding, the roughness of the bore reaches Ra0.1, both ends of R roughness up to Ra0.025; in the both entrance radius of curvature of the scientific design, to ensure the line smooth, compared with ruby, due to the overall material processing, no step line nozzle hole improve, easy to bend blocking phenomenon.

Advantages: high impact resistance, high steel, ultra-high hardness.