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Testing equipments
Crack Detection Testing
Superficial Rockwell Hardness Tester
Direct Reading Spectrometer
Impact Testing Machine
Abrasion Testing Machine
Metallographic Corrosion and Physical-Chemical Analysis Center
Princeton Electrochemical Workstation
Hydraulic Universal Testing Machine
Large Sized Metaloscope
Hardness Testing
Process Inspection
Experimental Vacuum Furnace
Magnetic Defect Detector
Portable Spectrum Analyzer
Ultrasonic Analyzer
Coating Plating Layer Thickness Gauge
Electric Instrument Testing
Electric Spark Inspecting
Hydrotest Machine
Pressure Test Machine
High Pressure Testing Machine
Hard Seal butterfly valve Testing
Soft Seal Valve Testing
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NVF was found in 1959, we are professional in manufacturing forging steel valve and casting steel valve, gate valve, globe valve, check valve, ball valve, butterfly valve, plug valve and so on.