| Message: | The cavity and core of this mold are made with hard alloy. Low-speed WEDM is used for internal processing of the cavity to sub-mirror effect, and then abrasive flowing machine for polishing to the mirror effect; the mold core is ground with tool grinder to sub-mirror effect and then polished to mirror effect; both upper and lower punches are made with hard alloy, processed with low-speed WEDM to sub-mirror effect after welding, and then polished to mirror effect. url:http://www.yxhgmould.com |
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