1, needle gauge work surface shall not have scratches, burrs and rust and other defects. 2, one or both ends of the needle gauge, within 1mm from the use of the appropriate width and its combination of angle angle chamfer.

Milling → according to the requirements of the recipe → by wet grinding → mixing → crushing → drying → sieving → after the addition of molding agent → re-drying → after the preparation of the mixture

Carbide bushings, also known as tungsten steel bushings, are made of refractory metal hard compounds and bonded metal through powder metallurgy made of an alloy material.

Tungsten steel bushing is mainly used for stamping and stretching. Carbide is widely used as a tool material, such as turning tools, milling cutters, planers, drill bits, boring tools, etc.,

Tungsten steel gauge is tungsten-containing steel, such as high-speed steel and some hot production model steel, steel tungsten for steel hardness and resistance to internal combustion has a significant improvement, but the toughness will drop rapidly.

High precision molds supporting the use of carbide punch precision requirements are very high, as well as product consistency, requiring mass production of each punch must be in strict accordance with the dimensional accuracy of tolerance requirements, to achieve maximum mold life. As a precision molds supporting the use of carbide pins, product consistency is a key factor, which will directly affect the mold life and product size accuracy.