ʻO nā kumulāʻau sunflower a mākou e hoʻohana ai mai Xinjiang a me Inner Mongolia, me nā kūlana kaiapuni maikaʻi loa, ʻaʻole iʻoi aku ma mua o 180 mau hua no 50g, ʻaʻole ʻoi aku ma mua o 0.5 mau hua me ka mold, a ʻaʻole ʻoi aku ma mua o 1 hua me ka deformation. ʻO ka manaʻo nui i nā ala kūikawā kiʻekiʻe a me waena, me Hebei PetroChina, Hebei Expressway Service Area, Beijing Railway Bureau, etc.