Among them, the most used plastics account for up to 80%, followed by glass, while metal accounts for only 8%.
ໃນນັ້ນ, ພລາສຕິກທີ່ໃຊ້ຫຼາຍທີ່ສຸດກວມເອົາເຖິງ 80%, ຖັດມາແມ່ນແກ້ວ, ໃນຂະນະທີ່ໂລຫະກວມເອົາພຽງແຕ່ 8%.