北京中瑞土工膜生产厂家 

土工膜厂家,土工布厂家,长丝布厂家,隧道防水板

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About us
Beijing ZhongRui environmental technology engineering company headquartered in Beijing Xicheng District, the company over the years to geosynthetics, filter materials, composite materials, building waterproof materials research and development, production, applic
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