Unverified75% confidenceFactTime unknown
定量（g/㎡）反映单层纸的密实程度，普通卷纸单层约13-17g/㎡，数值越高纸越挺实抗撕；结合层数可估算整体厚度，比单看层数更准确
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Unverified抽纸看'定量'（g/㎡）比看层数更准，单层定量≥18g/㎡才够韧不易破，很多3层薄纸实际用纸量比2层加厚款还少89% similarUnverified卷纸标注层数≥3层且单层克重≥16g/㎡（即整卷克重换算后每层实测≥15g）才算高端标准，2层纸擦拭时易破需叠加使用反而更费81% similarUnverified纸箱克重（g/㎡）比瓦楞层数更能反映抗压能力，同为3层楞，纸板克重从300g提升到500g，抗压强度可翻倍，选购时优先看纸板厚度而非只看层数79% similarUnverified纸箱克重（g/m²）反映纸张厚度，五层箱面纸克重通常在150g以上，用手指按压箱面不易凹陷、瓦楞排列紧密的更耐压78% similarUnverified纸巾看克重而非层数：3层薄纸不一定比2层厚纸好用，单张克重（约13-17g/㎡为常见优质区间）更能反映实际厚度和吸水性77% similar
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