About Us? UNIONSUM provides sustainable system solution for mining and metallurgy industry, which including engineering, procurement construction, offers a wide range of scientific research consulting services. Who are we? History from 1953; Most ...

We are one of the largest metal waste buyers in China .We mainly have interested some rare powder and scraps, including tungsten, nickel, cobalt, molybdenum .And we also import frozen chicken ***** you this, please send quotation to my e-mail can purchase this ...