Zhengzhou BAOLUAN Municipal Facilities Co., Ltd is a high-tech company engaged in research and development of new environmental friendly materials, production, and exporting. The main products are FRP/GRP Manhole Covers, Artistic Manhole Covers, Water Storm Manhole Covers, Trench Drain Covers, Gully Grates, Sewerage Gratings, etc. Fiber rein forced polymer is made from unsaturated polyester resin; more than ten kinds of composite materials are mixed for pressing under the normal temperature....
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