cov yeeb nkab hlau
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Cov yeeb nkab hlau carbon
Nyem ob zaug
Cov kav hlau carbon tau muab faib ua cov kav hlau kub dov thiab cov kav hlau txias dov (kos).
Cov yeeb nkab carbon steel kub dov tau muab faib ua cov yeeb nkab hlau dav dav, cov yeeb nkab boiler siab qis thiab nruab nrab, cov yeeb nkab boiler siab siab, cov yeeb nkab hlau alloy, cov yeeb nkab hlau stainless, cov yeeb nkab tawg roj av, cov yeeb nkab hlau geological thiab lwm cov yeeb nkab hlau.