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There are many advantage of fiberglass, like high accuracy of fiber length, high content of fiber volume, common diameter, excellent fluidity before dispersed, high temperature resistance ,no static and etc. FRP products has excellent toughness and anti-expansion, high impact strength performance because of the common tensile strength and three-dimensional network structure. However, glass fiber powder can not have such performance because it is a destruction technology, the length of the fiber is not same. Due to it is a scrap, there are many impurities in it, the diameter is not same. Therefore, after added, the strength cannot be guarantee, and the strength of the each part is different, also easy to interweave the lumps.
