Compared with the lace on the details of the metal was machined by sanding method has high standards, then threaded on plastic details are produced by extrusion method is somewhat more comfortable. Marginal form of lace sometimes designed not standard at all, because in addition to dependent work features of the product, shall require the ability to please the machining process, mold fill the mold and remove the following products when spraying the stars for the most optimal.
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