Ningbo xuyu machine manufacturing Co., Ltd. is a group company specializing in the development, manufacture and trading of mechanical components. It has his own forging plant,casting plant and mechanical seal plant and has testing equipment related,such as Rockwell Hardness Tester,Ultrasonic Flaw Detector,Two-dimensional Projector,Dift Tester,Pull Tester,Concussion Tester, Metallographic Tester...