Rov qab siv cov khoom siv ntawm cov khoom siv tseem ceeb (18 / 41)

Lub chaw lis haujlwm International of Recycling (BIR) tsis ntev los no tau hais txog kev siv cov khoom siv pov tseg tsis muaj nqi thiab hais txog lub luag haujlwm tseem ceeb ntawm kev rov ua dua tshiab. Cov lus tseem ceeb: xya qhov khoom siv tau ntxiv rau rau qhov tseem ceeb tshaj plaws ntawm cov khoom siv raw - dej, huab cua, roj, roj av, thee thiab ores - cov khoom siv rov ua dua tshiab. Innovation hauv cov khoom thiab kev ntim khoom yog qhov yuav tsum tau ua.