Pine fuel briquettes, oak briquettes, beech briquettes, sawdust briquettes, Khmelnytsky region.

Wooden fuel briquettes from solid wood species - pine, oak, beech. We are looking for an export contract. Briquette Pini Kay is an ecological type of solid fuel, which is produced exclusively from hardwood.The advantage of fuel briquettes Pinikei: does not burn with burning coals, moisture-resistant, harmless to the environment, convenient for transportation and storage, used in various combustion chambers.
(//tractor-service.com)
The briquettes are made in the form of a cylinder, and the hole in the middle is designed to create additional traction inside the briquette itself. Thus, the need for forced ventilation, which is needed for ordinary firewoodfirewood, which means that wood briquettes burn much longer and more efficiently.

Link to the site with the product http://www.kremin.in.ua/brikett_2.html