Christmas is still eight months away, but artificial tree maker Lou Liping is already worried about a bad holiday season due to the Iran war. Lou's company, Kitty Christmas Factory, has been making artificial trees for the U.S. and European markets for nearly three decades. Her facility is based in the city of Yiwu, known as China's Christmas capital. "Many customers ... are holding off on orders," she told CNBC last Friday at her showroom in the city's international expo center. The center