2：specification: block, granule,:

3：powder packaging: transparent plastic bag vacuum packaging after aluminum foil bag vacuum packaging, or polyethylene bottle packaging after aluminum foil bag vacuum packaging, customers can specify packaging. 

4：Service: provide ICP-MASS or ICP-AES or XRD or granularity test report according to product category; provide after-sales service and material application solution according to customer needs.

5：Uses: mainly used in semiconductor and infrared materials, also can be used as fluorescence, phosphorescent materials, can be made of light-emitting diode, that can be used as infrared detection, radiation detection materials.