Low temperature or low altitude, use fast shuttlecock. 79, 80 in Australia in winter. Or high temperture area as Johannesburg in South Africa.Anhui Lingmei Sporting Goods Co., Ltd established in 1996, It is a professional badminton manufacturer with researching, production and marketing. Also, many Jews, Christians, and Muslims consider the historical reality of biblical figures an important or even essential aspect of their faith. In view of this subjective wish for persons in the Bible to be historical, if any…