And just as a raw material, its performance, adaptability, and so it is not all the same, binders, its triangular bandages of unbleached size, use a degree of difference.

• 而且同样一栽原质料，其不梢能机能、适答性等也不尽不异，不离黏分剂来说，其黏性不小小有差别，用途也有必定的差别。