任丘市精成硬质合金制品有限公司
Exhibit Profile：
Tungsten carbide accessories Tungsten steel wear-resistant parts petroleum mechanical seals valve core seat tungsten steel shaft sleeve wire drawing die Drawing die Diamond die and various tungsten steel blank support custom
Tungsten carbide accessories Tungsten steel wear-resistant parts petroleum mechanical seals valve core seat tungsten steel shaft sleeve wire drawing die Drawing die Diamond die and various tungsten steel blank support custom
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