The Trump administration has excluded Christmas tree lights, a series of pet supplies, plastic drinking straws and hundreds of other products from a 25 percent duty President Donald Trump imposed on $250 billion worth of Chinese goods, …….Other products on the three lists of tariff exclusions include certain single-speed bikes, water drinking fountains for pets, various types of pumps, heat exchangers, compressors, chest-type coolers, upright freezers, household water filter cartridges, anesthesia masks, electric-powered skateboards, three-wheeled carriages used by people with disabilities, chain-link fence panels, tractor-trailer skirts, x-ray tables, wick-burning torches for outdoor use, and dog harnesses and dog leashes.