Monga m'modzi mwa otsogola opanga ndi ogulitsa ma Hybrid PDC And Rolling Cone Bits ku China, tikukulandirani ndi manja awiri kuti mugule kapena kugulitsa Hybrid PDC Ndi Rolling Cone Bits zomwe zili pano kuchokera kufakitale yathu. Zogulitsa zonse ndi zapamwamba komanso mtengo wampikisano. Lumikizanani nafe zitsanzo zaulere.
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