What is the fine-grained topic of the following text: In 2015, 33.7 percent of plastic products were sold downstream to services companies, which consume plastic products such as “bags, sterile packaging, intravenous tubing, signage, drink containers, other food service items, and automotive repair parts.” Many of these types of products are ones with which end consumers interact directly. Only return the topic.
Downstream sale of plastic products to services companies in 2015