Jiangyin Haida Rubber and Plastic Co., Ltd., is the leading manufacturer in the rubber and plastic seal industry in China. Haida has strong and abundant technical resources. There are more than 130 professional technicians in R&D and production area; in addition, there are all kinds of advanced software and hardware equipment. Based on that, Haida could provide systemic service such as material research and product design. As a state approved high-tech enterprise, Haida also has more than 4