18-26A Classifying period costs and product costs Lawlor, Inc. is the manufacturer of lawn care equipment. The company incurs the following costs while manufacturing weed trimmers: . Shaft and handle of weed trimmer Motor of weed trimmer Factory labor for workers assembling weed trimmers Nylon thread used by the weed trimmer (not traced to the product) Glue to hold the housing together Plant janitorial wages Depreciation on factory equipment Rent on plant Sales commissions Administrative salaries Plant utilities Shipping costs to deliver finished weed trimmers to customers