小球燃料主要是由锯屑，刨花和处理木材和其他木头产品的树木之后而制成的。
Pellet fuel is made mainly of sawdust, shavings and fines leftover after processing trees for lumber and other wood products.
小球燃料主要是由锯屑，刨花和处理木材和其他木头产品的树木之后而制成的。
Pellet fuel is made mainly of sawdust, shavings and fines leftover after processing trees for lumber and other wood products.
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