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Automatic polishing device for drill bit production

Dispositif de polissage automatique pour la production de forets

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Modèle d'utilité] Dispositif de polissage automatique pour la production de forets Numéro d'annonce d'autorisation :CN215470402UDate d'annonce de l'autorisation :2022.01.11Numéro de demande :2021220542677Date de la demande :2021.08.30Titulaire du brevet :Qidong County Fengsu Drilling Tools Co., Ltd.Inventeurs :Li Xiaohuan; Zou Chao; Li ZhongyongAdresse : No. 101 Groupe Baihe, Village Baijia, Bureau de la rue Baihe, Comté...
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