“美國3D打印技術隻能打印塑膠部”，真是新義和團。我們美國公司生產的3D打印機，能打十幾種金屬

來源: huiming1234 於 2015-08-18 22:43:22 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.