
Slotted pan taub hau screws yog tsim los ntawm ntau yam ntaub ntawv, txhua tus xaiv los ua kom tiav cov kev thov tshwj xeeb. Cov pa roj carbon steel sawv raws li cov khoom siv feem ntau siv rau kev siv dav dav.
Phillips countersunk ca lub taub hau tshuab screws yog tsim los ntawm ntau yam ntaub ntawv, txhua tus xaiv kom haum rau cov kev xav tau tshwj xeeb. Cov pa roj carbon steel yog cov khoom siv feem ntau siv rau kev siv lub hom phiaj.
CSK flat socket head screws feem ntau yog tsim los ntawm ntau yam khoom siv, txhua tus xaiv kom ua tau raws li qhov yuav tsum tau ua. Cov pa roj carbon steel yog cov khoom siv feem ntau siv rau kev siv dav dav. Cov qib xws li 4.8, 8.8, thiab 10.9 feem ntau ua haujlwm.
Hebei Fujinrui Hlau Khoom Co., Ltd. yog tsim nyob rau hauv 2004 thiab nyob rau hauv Handan City, Hebei xeev. Lub tuam txhab npog thaj tsam ntawm 10,000 square meters thiab muaj ntau tshaj 200 tus neeg ua haujlwm. Nws yog ib qho kev lag luam sib koom ua ke cov khoom siv fastener ntau lawm thiab hlau nto tiv thaiv corrosion, nrog pab pawg neeg tsim khoom siv technology. Ntau tshaj 20 xyoo ntawm kev paub hauv kev lag luam fastener.