NV4

nv4-ht-tt-06-thu-tuc-quan-ly-giay-chung-nhan-qms.pdf

nv4-ht-tt-02-thu-tuc-danh-gia-he-thong-quan-ly-chat-luong-qms.pdf

nv4-cn-qd-63-quy-dinh-su-dung-giay-chung-nhan-va-dau-phu-hop.pdf

nv4-cn-qd-01-quy-dinh-nguyen-tac-va-dieu-kien-chung-nhan-quatest1.pdf

nv4-quy-dinh-thoa-thuan-chung-nhan-kem-theo-phieu-dang-ky-chung-nhan-sp-htqlcl.pdf

nv4-phieu-dang-ky-chung-nhan-he-thong-quan-ly-chat-luong-qms.doc