DONGSHAO ndi wodziwika bwino wopanga komanso wopereka zinthu ku China yemwe ali ndi zaka zambiri zokhazikika pakupanga ma Bolts a Maso. Tikuyembekeza kukhazikitsa ubale wamalonda ndi inu.
Amagwiritsidwa ntchito kwambiri polumikiza tizigawo tating'ono. Ili ndi zomangira zapamutu, zomangira zamutu za cylindrical, zomangira zamutu za semi-countersunk ndi zomangira zamutu zotsukira. Kulimba kwa mutu wa poto wa zomangira zamutu ...
Kukula kwa mabatani kumagwiritsidwa ntchito m'minda yambiri monga zomanga ndi makampani. Amakwaniritsa kulumikizana kwambiri ndi kudzitukumula kudzera pakukula. Zolemba zake zimasankhidwa molingana ndi chochitikacho. Ndi chinthu chofunikira kwambiri chogwirizanitsa mu ukadaulo.
Kawirikawiri, timakhutira ndi mbali zonse, zotsika mtengo, zapamwamba, zoperekera mofulumira komanso kalembedwe kabwino ka procuct, tidzakhala ndi mgwirizano wotsatira!
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