The polyurethane sieve plate used in coal mines is one of these products.
矿用聚氨酯筛板就是其中之一。
The molding process and equipment of the polyurethane sieve-plate were compared to those of rubber sieve-plate.
并将其与橡胶筛板的成型工艺和成型设备进行了对比。
The sieve is made of polyurethane, thereby resolving the weakness of the prior art that no mould is applicable to manufacture the polyurethane sieve.
其制造的筛网为聚氨酯制造，解决了现有技术中 没有适用于制造聚氨酯筛网的模具的缺点。
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