To grow mulberry silkworm has age-old history in China. Silkworm is an insect and there are four shedding in its life. White mulberry’s leaves are their foods; their appetite is bigger than their weight every day. How interesting they don’t reduce! Their Silk of it to throw up from their mouth is best one raw materials spinning. In China ancient times only very rich man could be used it. In image they have shed fourth.