Beijing Cheng Rui Zhang warranty label production company into Chapter warranty label | Warranty chapter trademark labels | Warranty chapter trademark labels | making major producers or distributors to provide professional: Warranty chapter price tag, leaving open the chapter labels, phone warranty stickers, phone warranty chapters, chapter phone warranty label design, digital standard warranty chapters, chapter label digital transfer digital warranty seal stickers, warranty chapters labels, seal labels turn, turn seal stickers, fragile security label printing, anti-counterfeiting label printing transfer |, sealing sign printing, security certificate printing, factory security certificate printing and other printed matter and anti-counterfeiting products. Our company is a long engaged in security printing companies, China and India appointed special security industry associations point security products R & D and production units, application logic operation according to the security code marked on each chop, the group generated a corresponding security code group of English letters. Its features are: 1, the uniqueness of the computing equation, counterfeiters do not know if the formula is not a lot of counterfeit. 2 letters of the alphabet and the security code is a close correspondence between self-adhesive label manufacturers warranty chapter