machine，micro-plasma arc welding and BP400 arc spraying. We also have various advanced testing equipment; CMM, laser tracker, Electronic Total Station, laser interferometer, large field metllic microscope, infrared carbon sulfur analyzer, Nitrogen, hydrogen, and oxygen combination analyzer, direct reading spectrometer, X-ray flaw detector Radiographic detector, magnetic particle detector, etc. These professional equipment provide strong guarantees for manufacturing high-quality products.