综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

A large Shang Dynasty kitchen range used for boiling-off salt was excavated on December 11, 2008 in Shouguang City, Shandong Province. More than 30 sites relating to small-scale Shang and Zhou Dynasty salt workshops had previously been discovered in April at Shuang Wang Cheng reservoir site in Shouguang City, in east China's Shandong Province.[Wu Zengxiang/Xinhua]