工厂简介：工厂位于中国北京市房山区青龙湖镇，主要生产加工黄木纹石英岩。
Manufactory profile : manufactory lies in qinglong lake county fangshan district beijing city china , main process yellow quartzite.
工厂简介：工厂位于中国北京市房山区青龙湖镇，主要生产加工黄木纹石英岩。
Manufactory profile : manufactory lies in qinglong lake county fangshan district beijing city china , main process yellow quartzite.
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