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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
The answer depends on where you purchase your raw materials from. Buying lumber, like logs and scrap lumber, can be very expensive because resources are limited. Using sawdust from a local mill or carpenter can be inexpensive, but the wood tends to have more contaminants like rocks and metal. You may also have to purchase special machinery for making pellets, which can get pretty expensive.
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