Отличаться то она будет: дерево и бумага- разные по свойствам материалы: дерево имеет анизотопные свойства (то есть, “вдоль волокон” оно значительно крепче, чем поперек) А ватман- это каша из целлюлозы, спрессованная.
А нельзя фанеру применить 1 мм- её в природе гораздо больше, чем 0,4 и стоит она (я так думаю, сам 0,4 ни разу не видал)- много дешевле?
И главное- цена какая гуманная: посчитал тут:61х40= 2440см*
0,7 руб/см*
Думаю если заменить стеклом на смоле будет прочнее.
Возможно и сильно тяжелее…
От задачи зависит.
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