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copper nuts

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Guide pillar bushing

Profile

    We have thirty years of industry experience and state-of-the-art infrastructure, quality of products meet the relevant national standards, a metal engineering industry is committed to casting, processing, marketing, and service in one enterprise.
     Our factory production of copper alloy products and metal ……

Casting

Continuous casting Principle: cooling (from liquid to solid state cooling) time is very short, make swim free atoms  which is not unity has been set. Take molten metal constantly poured into a mold which called special metal mold in solidification (crust) of the castings, continuously pull from the other side of the mold, it can obtain arbitrary length or the length of the specific casting......[更多...]