
Slotted pan head screws amapangidwa kuchokera kuzinthu zosiyanasiyana, chilichonse chimasankhidwa kuti chikwaniritse zomwe mukufuna. Chitsulo cha kaboni chimayima ngati chinthu chomwe chimagwiritsidwa ntchito nthawi zambiri.
Phillips countersunk flat head machine screws amapangidwa kuchokera kuzinthu zosiyanasiyana, chilichonse chimasankhidwa kuti chigwirizane ndi zosowa zapadera. Chitsulo cha kaboni ndi chinthu chomwe chimagwiritsidwa ntchito nthawi zambiri pazinthu zonse.
CSK flat socket socket head screws nthawi zambiri amapangidwa kuchokera kuzinthu zosiyanasiyana, chilichonse chimasankhidwa kuti chikwaniritse zofunikira zinazake. Chitsulo cha kaboni ndi chinthu chomwe chimagwiritsidwa ntchito nthawi zambiri pazinthu zonse. Magiredi monga 4.8, 8.8, ndi 10.9 amagwiritsidwa ntchito pafupipafupi.
Hebei Fujinrui Metal Products Co., Ltd. idakhazikitsidwa mu 2004 ndipo ili ku Handan City, Province la Hebei. Kampaniyi ili ndi malo a 10,000 square metres ndipo ili ndi antchito opitilira 200. Ndi bizinesi yophatikizira kupanga zinthu zomangira komanso chitetezo chachitsulo pamwamba pa dzimbiri, ndi gulu lokhwima laukadaulo wopanga. Zopitilira zaka 20 zokumana nazo mumakampani othamanga.