Dear Valued Customer, We are living in a tumultuous time. Due to imported inflation from America and strict control of carbon emissions from our government, the cost of chemical compositions like Silicon, Chromium, Manganese is soaring. Meanwhile, the labor cost…
Dear friend, Happy Mid-autumn Day! We will be off work from Sept. 18 -21, 2021, and all your messages will be replied to on Sept. 22. Sandrock Mining Team