COMPANY PROFILE：Tianjin Haorui Technology Co., Ltd. is specializing in supplying vacuum system products for many years. Our products are widely used in semiconductor, electronics, pharmaceutical, aerospace,etc. After years of professional technology and experience accumulation, our high quality, high precision and reliability are well received by the industry.Haorui products include vacuum pumps, vacuum valves, connectors, vacuum instruments ,etc. It is manufactured with high quality materials and advanced technology to ensure excellent pressure resistance and sealing performance. In addition, strong research and development capabilities enable us to provi...