Shandong Yongfeng Hydraulic Machinery Co.,Ltd,an well-know enterprise of hose crimping machine,hydraulic hoses and fittings,with the experience more than 20 years.As present,as the biggest and most professional manufacturer in china.Yongfeng’s products have widely used in industries of construction machinery,oil field,mining,military,greenhouse engineering,shipbuilding,hydraulic hoses manufacturing,automobile,equipmentsrepair service,etc