HSS TWIST DRILLS      The hss drills we producecover the size from φ0.2mmto φ76mmincluding hss straight shank driils and the taper shank drills We carry out theprduct technical standard such as ISO, DIN, GB/T. Using milling, thermoplasticmolding and CNC heavy grinding, vacuum heat treatment, surface hardnanocomposite coating technology. Our products are widely used in automobiles,abrasive, aerospace and other fields of various materials, applying for variousprecision and form hole processing.Our products achieve high domestic marketshare。
 
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