Question 1:What is the main purpose of gray cardboard? Gray cardboard is suitable for hardcover boo..
All-ash boardboard is a kind of paperboard with high tightness.It mainly uses mechanical super-high ..
All-ash board is an indispensable material for product packaging.Although it adopts a special proces..
Gray paperboard has low quality requirements for raw materials,and waste paper,semi-bleached pulp an..
The use of gray cardboard is very extensive,occupying a large part of the space in the packaging mar..
Both cardboard and paper are products that are easily damp.When it rains,the moisture in the air wil..