If you are interested in our company's products, we welcome your consultation 7/24 hours, and we are committed to creating the most suitable solution for you.Get Price
Jul 03, 2015 1. Blue Bowl Technique This method of black sand gold separation actually works by using water in a similar fashion as a swirling toilet. It washes out the black sand and tends to keep the now cleaner gold at the bottom of the blue bowl. This is a.
GET A QUOTE
Note:If you are interested in our products, please leave your information, and we will have professional online marketing service for you. We will give you the feedback immediately accordding to your your needs.
7*24 hours online service for you
Zhengzhou high tech Zone, ChinaGet Price