N-type Paper board
Weight range: 120～250（g/㎡）
120 g/㎡、
Weight range: 120～250（g/㎡）
120 g/㎡、
Attributes: Kraft liner board is one of the main kinds of paper cartons of paper.
Features: hard and tough, bursting strength, ring crush strength and tear is high, with high water resistance. Test items: quantitative, thickness, tightness, bursting, burst index, ring crush strength, transverse ring crush index, breaking length, tear, glue, moisture, banners quantitative difference, horizontal folding, etc. and so on. Uses: mainly related to the core after the adhesive is made of corrugated cardboard boxes for packaging household appliances, daily necessities, knitting cotton fabric, stationery, packaging and other Chinese and Western medicine.