Zibo Tongbao Sponge Co., Ltd. is located in Zhoucun District, Zibo City, Shandong Province. The company specializes in producing various kinds of high-grade sponges. The main products are: ordinary sponge, fire-proof sponge, high-rebound sponge, slow-rebound sponge and various types of special-shaped sponge. The company focuses on the production, research and development, sales as one of the private enterprises.....