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Ningbo Yinzhou Chenglong Hardware Co; Ltd
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About Us
Material ：SKH51 Hardness ：59-61HRC. The minimum diameter of pin to be machined isф0.2mm，with the maximum precision up to 0.001mm. Further machining such as chrome-plating and character-engraving is allowed for working end. Unremitting efforts in research has made us the pioneer to make ejector pin with high-speed steel which is of high hardness, high ductility, high grinding resistance and high heat resistance, better for precision mold, capable of increasing the service life significantly, ...
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