Hnav cov paib tiv thaiv caij nkoj, Weikelai cov khoom lag luam zoo tau xa mus rau Shanghai chaw nres nkoj
High-ua cov Abrasive resistant steel ntawv yog thauj khoom
Tsis ntev los no, ib pob ntawm cov tshuaj tiv thaiv cov qauv tsim los ntawm Weikelai vuam, ib qho khoom lag luam tshiab ntawm cov tuam txhab tshuab ntau tshaj 20 xyoo, tau muab rau peb cov neeg siv khoom zoo tshaj plaws {2}
Kev txhaum dab tsi resistant steel phaj?
Cov zaub mov xa tuaj no tsis yog tsuas yog pov thawj ntawm lub tuam txhab tsim khoom, tab sis kuj tseem muaj lwm cov qib kev ua lag luam nrog cov thev naus laus zis thiab txhim khu kev qha}
Peb ib txwm tsom kwm thev naus laus zis thiab cov khoom lag luam zoo li peb txoj sia ntawm .
Abrasion-resistant steel rau sab saum toj kev ua haujlwm
Cia siab rau ntawm 1, 530- square-} Cov Khoom Siv Ntau Lawm, thiab cov khoom siv hluav taws xob zoo nkauj heev muab cov neeg yuav khoom nrog cov khoom lag luam tiag tiag "{.
Dab tsi yog qhov zoo ntawm kev hnav cov phiaj tsis tiv thaiv tau?
