Knurled Hex Allen ntswj ntswj lub taub hau screws yog feem ntau crafted los ntawm cov khoom siv siab - cov khoom siv zoo kom ntseeg tau tias muaj txiaj ntsig. Carbon Steel yog cov siv cov khoom siv hluav taws xob ntau, tshwj xeeb tshaj yog nyob rau qib nyiam 4.8, 8.8, thiab 10.9.
Kev ua hauj lwm kub washer washer washer farnects ua ke yog feem ntau cov ntaub ntawv sib xyaw ua ke yog cov ntaub ntawv uas yuav tsum tau ua rau lub zog, durability, thiab corrosion tsis kam. Cov pa roj carbon hlau yog cov khoom siv hluav taws xob txuas ntxiv, tshwj xeeb tshaj yog nyob rau qib nyiam 4.8, 8.8, thiab 10.9.
Lifting qhov muag bolts yog feem ntau ntawm cov ntaub ntawv high-zog los xyuas kom meej lub peev xwm kev ruaj khov thiab kev nyab xeeb thaum lub sijhawm nqa haujlwm. Alloy steel yog cov khoom siv uas siv tau, tshwj xeeb yog qib li 42crmo thiab 35crmo.
Kub Dip Galvanized HDg Dacromet Geomet Mushrite Hlau Square Carriage Carriage Bolts Zoo li 4.8, 8.8, thiab 10.9.
DIN 603 carriage bolts yog feem ntau tsim los ntawm cov khoom siv zoo - cov ntaub ntawv zoo los xyuas kom ntseeg tau tias txhim khu kev qha thiab kav ntev.
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.