... ,we build up several subcompany.They are expert in shrink film,package box,printing and non woven bag industry.We ... text,watermark 3)color change,metallic thread,barcode 4)tamper evident Usage:widely used in different kinds of certificatePackage:opp+ ... 2.COLOR CHANGE 3.LASER HOLOGRAM 4.Texture 5.Tamper evident 6.Transparent hologram textureUSAGE1.GRADUATE CERTIFICATE2.PRODUCT CERTIFICATE3.WARRANTY ...