... , Length:80cm up6)As clients's requirement.2.Moisture: <5% or <8%3..Advantages:1) Yam contains amylase,polyphenol oxidase and other ... to make the body stronger, nourishing kidney increase sperm role.3) Yam contains saponins, lymphatic temperament, have lubrication, moist effect.. ... ) Yam containing mucus protein, have the effect that reduce blood sugar, can be used in the treatment of diabetes, is to ...