Vim yog h7 hloov lub teeb siv dav tam sim no, ntau lub Hoobkas pib tsim nws.

Txawm hais tias muaj ntau qhov sib txawv h7 hloov lub teeb hauv kev lag luam, kuv paub tseeb tias peb qhov zoo yuav yog qhov zoo tshaj plaws.

Vim tias tag nrho peb cov h7 hloov qhov muag teev siv “anti-uv quartz iav”.

Lub neej ntawm peb lub h7 hloov lub teeb yuav yog 800-1200 teev, tab sis lwm tus tsuas yog 30-300 teev.

Lub caij no, tus nqi ntawm peb h7 hloov lub teeb kuj tseem sib tw heev.

Txhawm rau ua kom koj pom tseeb peb qhov zoo tshaj plaws h7 hloov qhov muag teev, kuv yuav qhia koj daim duab hauv qab no.

Yog tias koj tuaj yeem muab peb lub teeb hloov h7, kuv paub tseeb tias koj yuav tsum yeej hauv koj lub khw.