Welcome to TengYi Mechanical Seal Co., Ltd.We are a professional manufacturer of mechanical seals which integrates design,production and sales into one.Our company has advanced manufacturing equipment,complete testing equipment and a professional technical team.The company has developed various products of high-pressure,high-temperature,strong-corrosion,and mechanical seal.These products have hundreds of series and can be classified into thousands of specifications.They are widely used in chemical,petroleum,