A "Wholesale vibrator cock ring" business primarily within the same strategic space and competition among "Wholesale vibrator cock ring" enterprises , due to the transfer of barriers between different strategic group is not easy to form a competitive relationship. Of course, such barriers are time-sensitive , due to changes in external conditions , the original factors as barriers may gradually disappear,For example , that many "Wholesale vibrator cock ring" industries are in a competition within countries , between countries and trade barriers of time and space due to the presence and isolated from each other , due to the development of globalization, these barriers because the grouping formed strategic space also will fail . For example, due to traffic convenience , some of the original by the regional "Wholesale vibrator cock ring http://www.zhsextoy.com/products-detail.asp?cpid=169" business transportation cost control , it is possible to cross traffic barriers to the development of the national market , which also changes the spatial structure of competition in the market .