Ningbo Yonglong Contribution Manchinery Factory is established in 1980,more than Twenties years in contribution manchinery field.Having developed for more than ten years .Our products sell well throughout the country and Asia and Europe,enjoying a high reputation among numerous customers.We supply contribution manchine such as Concrete vibrator ,Concrete vibrator shaft ,Road_surface TrowerL manchine,Hand insertion vibrator,concrete plate compactor,concrete cutter,water pump,portable vibratorand other revelant component of concrete vibrator ,like hose ,Frame,and any other coupling etc.