Tài nguyên được gắn thẻ với: Biomass Energy Developing Countries
1 đề mục được tìm thấy (Hiển thị 1 - 1)
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04-01-1983 This study contacted around 200 different research institutes and around 50 manufacturers of briquetting equipment with the goal of providing information for making briquettes with simple,small scale equipment powered by hand, animal or small motors. 33 pages, illustrations, photos