Of elevator nthuav dav Bolts yog xuas tes ua los ntawm tus hwm - cov ntaub ntawv qib los xyuas kom muaj kev nyab xeeb ntau, kev ntseeg tau, thiab kev txom nyem hauv siab - cov kev nyuaj siab ntawm ib puag ncig.
Npoo thauj tog rau nkoj feem ntau ua raws li cov ntaub ntawv zoo - cov ntaub ntawv zoo los lees paub ua haujlwm zoo thiab kav ntev.
Qab nthab anchors yog meticulously crafted los ntawm High cov ntaub ntawv los xyuas kom meej qhov kev ua haujlwm zoo 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.