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By certification 
Spiral Binding Hardcover School Book Printing
Product detail as below:
Product type (Item): spiral book printing
Printing type: offset printing
Pages: 20P+4P/25p+4P/30P+4P/40P+4P/50P+4P
Book case : 90g Glossy art paper 4c/4c
Inner paper: 70g matt art paper
Surface finish: gloss lamination for one side cover
Binding: spiral binding
Color: CMYK / pantone
Size: A3/A4/A5 or custom
MOQ: 500pcs
QC: 100% inspection cargos before delivery
Certificate: ISO9001 and SGS
Delivery term: Air/Sea/Truck
Delivery time: 6-10 days depends on the quantity
Price: $0.52-$1.52
Packing details: Export double corrugated carton .Eco friendly pallet and waterproof plastic film.
The news about printing:
October 8, 2014, at the Frankfurt Book Fair, China Book Import and Export (Group) Corporation and Ingram Content Group's Lightning resources China signed a global on-demand printing of books agreement by both sides to create a joint global demand Chinese books print network to provide for the Chinese press digital processing, digital content copyright protection, promotion and marketing of a full range of local demand printing solutions. Fig company for on-demand printing resources, on-demand printing Ingram North America, Europe, South America, Australia, 12 on-demand printing plants, and to achieve more than 180 countries worldwide marketing network through Ingram 24-hour direct supply.
http://www.printer-printing.com/
