The three groups of industrial products and services include materials and parts, capital
items, and supplies and services. Materials and parts include raw materials and manufactured
materials and parts. Raw materials consist of farm products (wheat, cotton, livestock,
fruits, vegetables) and natural products (fish, lumber, crude petroleum, iron ore). Manufactured
materials and parts consist of component materials (iron, yarn, cement, wires) and
component parts (small motors, tires, castings). Most manufactured materials and parts are
sold directly to industrial users. Price and service are the major marketing factors; branding
and advertising tend to be less important.