是。材料费要mark up 40-50%,有些都翻倍，

来源: NPshowway 于 2023-12-06 14:23:05 [旧帖] [给我悄悄话] 本文已被阅读：次

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