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LUOYANG RUIYU CERAMIC SAND CO., LTD.
Tel：+86 379 65110927
Fax：+86 379 65110921
Email：lyry@lyruiyu.cn
Website：www.lyruiyu.cn www.foundry-sand.cn
Address： Gaolong Town, Yanshi county, Luoyang, Henan, China
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