JW Insights: China's packaging and testing industry has not bottomed out yet in Q2, faced with weaker market demands China's packaging and testing industry has not shown signs of bottoming out, although there were improved order volumes in the second quarter of this year. 2w 07-28 17:01 READ MOST 我国授权纳米专利总数达46.4万件 居世界第一 7165 08-30 21:46 POPULAR TAGS 纳米 中科院 专利