标签：Tannic - 英国华人论坛

'Global Tannic Acid Industry Report 2016' provides detailed market and segment level data on the Global and Chinese consumption of Tannic Acid. The report provides historic, forecast and growth patterns by company, country and type/applicati...英国华人论坛

Have you ever noticed such phenomena? The mung beansbecome black after they were cooked in iron containers. The surfaces of applesand pears will be black if they are cut by iron knives. The reason of suchphenomena is that there is a substanc...英国华人论坛