Wood and wood processing residues such as firewood, wood pellets, wood chips, along with sawdust and squander from lumber and household furniture mills, along with black liquor sourced from pulp and paper mills.→ نَقِيٌّ čistý ren rein αγνός puro puhdas pur čist puro 純粋な 순수한 puur ren czysty puro чистый ren บร�