JS-300A/304A tractor are  a kind of small and medium size tractors, which can be used for working in farm fields and for transportation after attached with various implements. They are for drawing water, irrigating, generating, treshing etc. as a fixed power. In a word, they have many advertages, such as advanced design, compact construction, excellent operation, easy maintenance, saving fuel etc. They are ideal trators with good comprehensive performances and high utilization rate.