Crushed stone 57 – Sizes of about 34″. For concrete and asphalt mix, driveways, landscaping and French drains. Crushed stone 411 – A mixture of stone dust and 57 stone. For driveways, roads and as a base for retaining walls. It can also be used to patch holes in paved areas. The dust mixes with the larger stone and settles well.Get Latest Price
Our company has won wide praise at home and abroad with exquisite technology and advanced technology, and has become the export base of China's large-scale mining machinery
We are the mainstay of china mining machinery manufacturing industry with more than 40 years experience.
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