Nco ntsoov mus rau kev ua tau zoo, hlcaluminium tau tsim los ua kev lag luam-uas tsav thiab cov neeg siv khoom lag luam. Peb tsom kwm ntxiv dag zog rau lub peev xwm ntawm kev tshawb fawb thiab ua tiav kev lag luam kev lag luam. Peb tau teeb tsa cov neeg siv khoom pabcuam rau cov qhua tuaj noj mov kom tau zoo dua muab cov neeg siv khoom nrog cov kev pabcuam sai suav nrog kev xa ntawv kom taug qab. Square Edle ntug vuas muaj kev txhim kho ntau rau kev txhim kho cov khoom lag luam thiab kev pabcuam zoo dua qub hauv kev lag luam. Peb cog lus tias yuav muab txhua tus qhua thoob ntiaj teb nrog kev pabcuam sai thiab kev ua haujlwm npog cov muag khoom ua ntej, kev muag khoom, thiab tom qab muag cov kev pab. Txawm koj nyob qhov twg los yog dab tsi ua lag luam uas koj tau koom nrog, peb yuav nyiam pab koj daws tau txhua qhov teeb meem. Yog tias koj xav paub cov ntsiab lus ntxiv txog peb cov khoom lag luam tshiab square ntug vuas qab nthab vuas lossis peb lub tuam txhab, xav tiv tauj peb.Qhov khoom muaj zog txaus. Nws tau dhau lub hardness kev sim uas tuaj yeem tiv taus cov qauv hloov xws li kev ntsuas thiab kos.


