Faktori fasteners Chinwa a ap chaje yon kontenè pou boulon egzagonal ki gen gwo fòs, baton filete, ak boulon stud. Boulon egzagonal mak ZYL kalite siperyè DIN931 DIN933, vis priz DIN912, boulon bride din6921 Vis egzagonal DIN912, boulon Allen M10 M12 M16 M20 M24 M27 machin fòje frèt Pwodiksyon boulon egzagonal Lachin fastener, boulon egzagonal ISO4014/4017 Boulon, Nwa, Boulon Stud Ki jan yo pwodui A193 B7?
