Sweet potatoes sustain sweet life in east China mountainous county
FUZHOU, May 20 (Xinhua) -- Transformed by humming production lines and machines, tonnes of fresh sweet potatoes turn into packets of crispy sweet potato chips. Th
FUZHOU, May 20 (Xinhua) -- Transformed by humming production lines and machines, tonnes of fresh sweet potatoes turn into packets of crispy sweet potato chips. Th