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Since its establishment in 2003, Shanghai Xitang Biotechnology Co., Ltd. has developed a series of reagents for scientific research, focusing on technical services in life sciences and biological research, as well as the development and customization of scientific research kits. It is one of the earliest companies in China specializing in cytokine kits. The company's ELISA kits are highly sensitive, specific, stable, and come with free testing services. All products sold are guaranteed for quality and are supported by excellent after-sales service.