Heavy Construction Welding Machine Equipment Electrical and Mechanical Power Transmission Ifpe Solenoids Ningbo Funtion Solenoid Adopts Processing Technology International Advanced High Precision Testing Instruments Cnc Machining Automatic Professional Production Various Kinds Hydraulic Valves Annual Capacity 2400000 Sets Output Value 90000000 Products Mainly Divided Into Rexroth Yuken Northern Vickers Joint Design Explosion Proof Such Six Major Series Nearly Hundred Specifications Varieties Quality Product Performance According Iso9001 2008 Jb ...