Last month’s trip to China had state Sen. Butch Miller, R-Gainesville, trying to normalize his sleeping habits, but he was very alert about the future of Georgia-Chinese business relations. “We closed the deal with one manufacturer and initiated other conversations that will develop and grow,” he said during an interview last week. Miller was one of about 30 Georgia delegates who met with Chinese business leaders as part of a July 20-28 trade mission trip sponsored by Delta Air Lines’ inaugural Atlanta-to-Shanghai flight.