... shell. Dongguan Haiqing Jewelry Co., Ltd. Dongguan Haiqing Jewelry Co., Ltd., established in 2003, is a shell jewelry production corporation, specialized in development, design, production ... , ChinaPost Code: 523000 Dongguan Haiqing Jewelry Co., Ltd., established in 2003, is a shell jewelry production corporation, specialized in development, design, production and sales ...