Kev khawb av

Michigan yog ib lub tuam txhab muab khoom siv bevel gear uas ntseeg tau rau kev lag luam mining hauv Suav teb, muab cov kev daws teeb meem dav dav los ntawm kev tshawb nrhiav, kev mining, kev ua tiav, kev thauj mus los mus rau kev pov tseg pov tseg. Peb cov khoom lag luam tau tsim los kom tiv taus cov khoom thauj siab thiab cov xwm txheej hnyav, ua kom lub neej ntev dua thiab txo qhov xav tau hloov cov khoom seem ntau zaus. Txawm koj xav tau dab tsi los xij, peb tuaj yeem muab cov kev daws teeb meem tshwj xeeb uas ua tau raws li koj xav tau thiab tshaj qhov koj xav tau. Xaiv Michigan rau cov iav bevel zoo thiab kev pabcuam txhim khu kev qha.