用“polypropylene fibre”造句大全,polypropylene fibre造句
nickel modified polypropylene fibre
The polypropylene fibre have the better effect to concrete that the flowability is not too big than that is big. The polyacrylonitrile have no use to improve the homogeneity of concrete.
isotactic polypropylene fibre
The effect of polypropylene fibre and polymer latex on dry-shrinkage performance of sanded cement grout is researched.