Ironstone Vineyards has sold wine to China off and on for about 20 years.Other Lodi wineries have entered the promising market more recently.The punitive and retaliatory trade tariffs between the United States and China have had negative effects to varying degrees, depending on the size and business model of each winery.For instance, Ironstone Vineyards, which is based in Murphys and grows wine grapes and conducts much of its business within the Lodi American [...]