石材批发、石材加工、为一体的个人企业。
The stone material wholesale, the stone material processing, are a body's Individual enterprise.
石粉是天然石材精加工中的废弃物。
Stone powder is the discarded matter in the finish processing of natural stone.
蓝宝石材料硬度高，加工非常困难。
The sapphire material is very hard, so its manufacturing is very difficult.
蓝宝石材料硬度高，加工非常困难。
The sapphire material is very hard, so its manufacturing is very difficult.
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