Difference between Natural Pebbles and Machine-made Pebbles?
What is the difference between natural pebbles and machine-made pebbles? How are two kinds of stones formed 1.Machine-made Pebble Stone Machine made pebbles can be divided into machine grinding or manual bonding. Machine grinding:The edges and corners of the crushed stone are polished into a smooth and non-angular shape. Compared with natural pebbles, …
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