你是想知道be made of 与be made from 的区别吧,be made for是：最适宜的
be made of 与be made from 的意思都是“由.制成”的意思.
be made of是直接能看出原材料的
例：This book is made of papers.这本书是纸作的.
be made from 是不能从肉眼直接看出原材料的.
例：The paper is made from wood.纸是由木头制成的.