Don't have Telegram yet? Try it now!
https://www.circuplus.org/2019/06/27/%e6%b0%b4%e6%b3%a5%e7%94%a2%e6%a5%ad%e7%9a%84%e5%be%aa%e7%92%b0%e7%b6%93%e6%bf%9f%ef%bc%8d%ef%bc%8d%e5%88%a9%e7%94%a8%e7%81%ab%e5%b1%b1%e7%81%b0%e5%8f%96%e4%bb%a3%e9%83%a8%e5%88%86%e6%9d%90%e6%96%99/
水泥產業的循環經濟--利用火山灰取代部分材料!