... strong, glue moderate 5.High-strength cotton wrapping paper 12gsm-30gsmFeel smooth, soft continous,high strong toughness, ... 160gsmMembrane, wrinkle. Prevent slippery and beautiful 7. Wipe glass paper,cleaning paper 13gsm-60gsmPaper evenly, soft continous, high strength, ... made of quartz or plastic . 8. Quantitative filter paper:80gsm, 100gsm, 120gsm etcQualitative, quantitative, chemical testing, ...