用“polypropylene fibre”造句大全,polypropylene fibre造句
nickelmodifiedpolypropylenefibreisotacticpolypropylenefibreTheeffectofpolypropylenefibreandpolymerlatexondry-shrinkageperformanceofsandedcementgroutisresearched.Thepolypropylenefibrehavethebettereffec...