(28.56701.236.7261.7283.7374)

特种建材-特种建材的定义特种建材，应该从两重角度去思考：一、从直观角度理解：产品不是大众化的；是某种特定场所、地域、或是行业所需；二、从间接的角度理解‘它’：是传统产品从某一方面进行彻底的改进、撤换，使产品看上-tezhongjiancai</br> generated by yvsou girl

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