Which of the following does NOT belong to the materials and parts group of industrial products?
A) farm products such as wheat
B) natural products such as iron ore
C) repair and maintenance items
D) petroleum
E) lumber
Answer: C
Which of the following does NOT belong to the materials and parts group of industrial products?
A) farm products such as wheat
B) natural products such as iron ore
C) repair and maintenance items
D) petroleum
E) lumber
Answer: C