Corrugated board yog ntau txheej nplaum lub cev, uas yog tsawg kawg yog tsim los ntawm ib txheej ntawm corrugated core paper sandwich (feem ntau hu ua pit zhang, corrugated ntawv, corrugated ntawv core, corrugated base paper) thiab ib txheej ntawm cardboard (tseem hu ua "box board ...
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