... education 4)ISO14001 Product Name: Children Board Book,Children's bookMaterialC1S art board: 250gsm, 300gsm,350gsm,400gsmArt paper: ... 128gsm, 157gsm, 180gsm, 200gsm, 250gsmIvory board: 210gsm, 230gsm, 250gsm, 300gsm, 350gsmKraft paper: 80gsm, 100gsm ... Paper Stock:C1S/C2S stock,white board,grey board,gloss/matte art paper, special paper,grey board,kraft paper.2. Printing ...