... other national standard of environmental protection, non-fading color jewelry line.4.Surface Treatment: coated on the surface sliver ,dark ... customer requirements with computer color matching.5.Application: bead curtain line,necklace , bracelet , crystal bead , crystal lamp etc.6.Package: Packaging ... can provide a small jewelry line coil, a 10M, 20M, 50M, 100M, 200M and ...