12. Getting adequate tools to gather waste; tools are created of resources which not be corrupted much, assure be closed, with lids and become cleaned consistently. - m: mức suy giảm khả năng lao động do tai nạn lao động, bệnh nghề nghiệp (lấy số tuyệt đối 31 ≤ m https://gracel420nzk3.actoblog.com/profile