A. g Builders 507-831-2600 = Turn your Vision Into a Reality With Sudenga Grain Handling Equipment Solutions from Ag Builders Sudenga INDUSTRIES, INC. AgBuilders.com 507-831-2600 Windom, MN A. g Builders 507-831-2600 = Turn your Vision Into a Reality With Sudenga Grain Handling Equipment Solutions from Ag Builders Sudenga INDUSTRIES , INC . AgBuilders.com 507-831-2600 Windom , MN