Our goldprocessing craft and acid-wash spraying craft have attained to advanced level of national kindred products.
金加工工艺、酸洗喷镀工艺等，已达到国内同类产品的先进水平。
2
In the time equivalent to the Yin Shang Period, the Ancient Shu People not only mastered the high technology for bronze casting, but also skillfully mastered the technology for goldprocessing.
Getting the digging and processing equipment to the site costs millions, and then tons of gold must be produced and preferably other valuable minerals must also be present for a mine to be profitable.