Customer satisfaction is the core of all our service. 24 Hours online customer service

[email protected] 60s quick online response

  1. Home
  2. Rock Sand Manufacture Machines

Rock Sand Manufacture Machines

Sand was used as early as 6000 B.C. to grind and polish stones to make sharpened tools and other objects. The stones were rubbed on a piece of wetted sandstone to hone the cutting edge. In some cases, loose sand was scattered on a flat rock, and objects were rubbed against the …

Send Email:[email protected]

Leave Comments Chat Online

Hot Articles

focus on sand and aggregate information. Focus on industry trends, focus on information value, and tap business opportunities in the era.

Latest blog

focus on sand and aggregate information. Focus on industry trends, focus on information value, and tap business opportunities in the era.