3. Stems and other wastes Stems
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3. Stems and other wastes Stems圖片（共2張） :

        Only 60%～65% of the weight of tobacco bought at auction finds itsway into shred in the final cigarette product. By far the largest by-product is the stem or mid-rib that held the leaf to the plant stalk. The stemmakes up 20%～25% of the leaf weight (Table ......（本文共 2648 字, 2 張圖）     [閱讀本文] >>