Shanghai Duotuo Industrial Co., Ltd. is a packaging manufacturer in Shanghai, serving a multitude of businesses with the same meticulous attention to detail as we do for small and medium-sized clients. Our pursuit is not just short-term gains but also a long-standing reputation and long-term partnerships. We believe: Our products speak for themselves! Our factory produces a wide range of products including single-shoulder bags, double-shoulder bags, sports leisure bags, travel bags, women's c...