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“polypropylene fibre”造句,怎麼用polypropylene fibre造句

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nickel modified polypropylene fibre

The effect of polypropylene fibre and polymer latex on dry-shrinkage performance of sanded cement grout is researched.

polypropylene fibre造句

isotactic 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.