Originally posted by targetdown at 2005-1-23 17:42:
聚乳酸是pla吗?你不会记错吧,好像确实有p和a,但没有L,有个其它的字母。
Originally posted by mayoasis at 2005-1-23 05:57 PM:
http://www.chinaplastics.com.cn/zhxx/zhnr.asp?name=27967
欢迎光临 作战2000论坛 (http://www.combat2000.cn/) | Powered by Discuz! X3.2 |