An association may be organized under this article to engage in any activity in connection with the marketing or selling of the agricultural products of its members or with the harvesting, preserving, drying, processing, canning, packing, storing, handling, shipping, ginning or utilization thereof or in connection with the manufacturing, selling or supplying to its members of machinery, equipment or supplies or in the financing of the above enumerated activities or in any one or more of the activities specified in this section.