The raw materials, matrix formulations and product properties were introduced for the pultrusiened FRP bars of asymmetric bars, and the technical parameters of the product determined.
介绍挤拉成型玻璃钢高低杠杠面所用原材料、基体配方及产品性能，确定了该产品的工艺参数。
The invention applies to both enzyme concentrate raw materials, and to useful product formulations.
本发明适用于酶浓缩原料和有用的产品制剂。
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