Xov Xwm
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Txo ntawm cov khoom lag luam steel
Cuam tshuam los ntawm kev ua haujlwm nrawm ntawm cov chaw tsim kho nyob rau lub sijhawm thib ob ntawm lub xyoo, kev thov tau nce. Yog li, los ntawm nruab nrab thiab lig Lub Kaum Hli, cov kev lag luam steel cov khoom lag luam qhia tau poob qis zuj zus ntawm 7 lub sij hawm sib law liag, ncaj qha tsoo cov khoom qis kawg cov qib durin ...Nyeem ntxiv -
Qhov kub-dip galvanization yog dab tsi?
Kub-dip galvanization yog ib hom ntawv ntawm galvanization. Nws yog txheej txheem ntawm txheej txheej hlau thiab hlau nrog zinc, uas alloys nrog saum npoo ntawm lub hauv paus hlau thaum nqus cov hlau hauv da dej ntawm molten zinc ntawm qhov kub ntawm 840 ° F (449 ° C). Thaum kis nrog cua, cov ntshiab zinc (Zn) ...Nyeem ntxiv
