联系人 Ms. jianghua
shidai road, baoding city, hebei province
Slate is metamorphic rock, like the marble. However, instead of forming from a pre-existing limestone (like marble), slate is formed from the low-grade metamorphism of the sedimentary rock shale and volcanic ash deposited on sea floors. Slate, like shale ("mudstone"), is a very fined-grained rock of mostly microscopic clay minerals with some microscopic quartz and calcite.
| 国家: | China |
| 型号: | BM003 |
| 离岸价格: | 获取最新报价 |
| 位置: | - |
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