Welcome to visit

iconn1 iconn2 iconn3
  1. Home / 
  2. Gemstone Diamond And Colored Stone Mining In The

Gemstone Diamond And Colored Stone Mining In The

2017-3-29Blue Sapphire Diamond Blue sapphire, corundum, ruby, zircon and black spinel.After 30 years of alluvial mining, most gem fields are depleted. more information Spined and Sapphire The Ban Houay Xai sapphire mines trace their history back to 1890. Dark blue sapphire has been mined commercially since the 1970s. Wholesale druzy Jewellery.

Get Price

Hot Products

Our products sell well all over the world, and have advanced technology in the field of crushing sand grinding powder.


Note: If you're interested in the product, please submit your requirements and contacts and then we will contact you in two days. We promise that all your informations won't be leaked to anyone.

Copyright © 2020. Henan Mining Heavy Machinery All rights reserved. Sitemap