Main products on Erbium (er) : industrial purity metal Erbium, high purity metal Erbium, metal Erbium targets, Er-Al alloy, Er-Pr alloy, and other Erbium alloys and alloy targets.

Then the new technology in preparation of high purity scandium metal was proposed and its purification mechanism was discussed.

After dissolution of inclusion bodies in binding buffer containing 8m Urea, the fusion protein was purified with metal affinity chromatography column, high purity protein was achieved.