Magnetic Material, Metal Powder, Graphite Material manufacturer / supplier in China, offering 15-45um 440cn Alloy Iron Powder 15-53 Micron 440c 316L17-4pH Iron Metal for 3D Printing Cr Material, Melting Metal Gold Silver Scrap High Purity Carbon Graphite Crucible 3kg, High Density High Strength Artificial Carbon Graphite Block for Machinery Continuous Casting and so on.