Slotted Plo taub hau ntsia hlau yog muab cov khoom siv sib txawv, txhua tus xaiv kom ua tiav daim ntawv thov tshwj xeeb. Carbon Steel sawv raws li cov khoom siv saws rau dav dav - lub hom phiaj siv.
Phillips countersunk tiaj tus tshuab screws yog crafted los ntawm ntau cov ntaub ntawv, txhua tus tau xaiv kom haum rau cov ntawv thov kev xav tau tshwj xeeb. Cov hlau roj carbon hlau yog cov khoom siv uas nquag siv rau cov ntaub ntawv dav dav - lub hom phiaj kev siv.
CSK Caai ntsawb taub hau yog feem ntau tsim los ntawm cov khoom siv sib txawv, txhua tus raug xaiv kom tau raws li cov kev xav tau tshwj xeeb. Cov hlau roj carbon steel yog cov khoom siv uas siv tau rau cov ntaub ntawv dav dav - lub hom phiaj kev siv. Cov qib xws li 4.8, 8.8, thiab 10.9 yog nquag ua hauj lwm.
Hebei Fujinrui Hlau Hlau Khoom Co., Ltd. Tau tsim nyob rau hauv 2004 thiab nyob rau ntawm Handan City, Hebei xeev. Lub tuam txhab npog thaj tsam ntawm 10,000 square metres thiab muaj cov neeg ua haujlwm ntau tshaj 200 tus neeg. Nws yog ib qho kev lag luam ua haujlwm ua ke cov khoom lag luam nrawm nrawm thiab cov hlau sib dhos hlau corrosion, nrog ib pawg thev naus laus zis ntau lawm. Ntau tshaj 20 xyoo ntawm kev paub hauv kev lag luam nrawm.