... or as customers' request 2,purity:99%,90%.80% . 3,mesh:8-20.20-40,40-60,60-100 4,Low price of high ... and shine crystal or powder*Purity: 99% up*Mesh size 20mesh,30 mesh,40mesh,50mesh,60mesh,80mesh*Packing in 25kg/kraft paper ... and in ether. Dissolves in dilute hydrochloric acid.Mesh Size: 20, 30, 40, 50, 60, 80, mesh etc. Package: 25kg paper bag, or according ...