... % virgin wood pulp,18gsm Size : 21*21cm, 25*25cm,33*33cm,40*40cm,33*40cmcorlor : 1-6 coloursLayer : 2-3 plyCertification : SGS ... ://szdasheng.en.alibaba.com/ Packing details: Specification(cm) Layer sheets/pack packs/ctn cm 20GP(packs)40GP(packs) 40HQ(packs) 25x25 2 ...