... best quality from TISCO 3)Quality certification ISO Stainless Oil Casing PipeTianjin Ding Xin Hligh Pressure Alloy Pipe Trade ... than 20 countries and regions, such as Japan, South Korea, India, Malaysia, Brazil, Belgium, Argentina, Mexico, the United States, ... be customized any specifications according to customers' requirementsName:API 5CT Oil casing pipeMaterial:304, 321. TP316L, 310S, 904L, 347, ...