“无铅”是可能的,但加了锌,铜,铁等替代物。
本帖于 2010-12-05 21:08:21 时间, 由普通用户 HenryLi 编辑
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy