GB/T 6546-2021.Corrugated fibreboard-Determination of edgewise cerush resistance. 8试样制备 8.1利用锋利的刀片 按...
GB/T 6546-2021 瓦楞纸板 边压强度的测定
GB/T 6546-2021.Corrugated fibreboard-Determination of edgewise crush resistance. 1范围 GB/T 6546规定了利用边...