Chinese machinery maker Liugong Group shifts focus to overseas markets as domestic construction industry cools Guangxi Liugong Group plans to further boost its overseas business to offset the domestic industry downturn 1.9w 09-22 16:26 READ MOST 我国授权纳米专利总数达46.4万件 居世界第一 5394 08-30 21:46 POPULAR TAGS 纳米 中科院 专利