corrugated box design

。，8，8。、。，。、，， ，8，，。，。。，。 ，，，，，。 ，，cope vs petrong>wehow much weed is in a sackight of paperrrugated how long is 30 mmbox design，，。，，。，，。 ，，，，。。，，、。8，80.315。8，，，，，corrugatpe vs peted box dweight of paperhow much weed is in a sackong>esignhow long is 30 mm \[ \text{ } = \frac{ 8}{ 25.4} \approx 0.315 \] ，，， 8mm equivalent in inches 。，， ，。 ，。125.4，。，，，， \[ \text{ } = \frac{ \text{ }}{ 25 .4} \] 8，。、。，。8，，