what did the chinese of the ming dynasty trade with were there technological breakthroughs

The development of the handicraft industry promoted market economy and urbanization. During the reign of Emperor Shizong and Emperor Shenzong, a great amount of commodities including silk, alcohol, porcelain, tobacco, crops, vegetable and fruits was sold in the market. Meanwhile, many foreign commodities such as clocks from Europe and tobacco from America were on sale in many cities of China.