The 91 material is a service that focuses on semiconductor scientific reagents and materials and works to provide one-stop high-purity material solutions to scientific institutions and laboratories. Since its establishment, 91 materials have been deeply cultivated in semiconductor materials such as high-purity metals, alloys, membranes and target materials, serving more than 2,300 priority laboratories, colleges, institutes, etc., to ensure that clients have quick and easy access to the required scientific materials and contribute to the efficient conduct of scientific research。