Nếu như nói mình cho bạn 1 lời khuyên nào đó thì mình chỉ có mấy chữ này thôi:
Là mẫu giấy chứng nhận được cục trưởng cục an toàn lao động cấp cho Ông Trần Thanh Nam, chứng minh năng lực trở thành giảng viên huấn luyện an toàn vệ sinh lao động.
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