... 13-3/8”,16”,18-5/8”,20” Tubing:2-3/8”,2-7/8”,3-1 ... R2,R3PackageAccording to customers’ requirementsLinzhou Fengbao,a professional seamless pipe manufacturer, a non-stop service provider! ... we can also supply: Casing Pipe/Oil pipe Seamless As per API-5CT standard/ISO11960 H40\J55\K55\ ... Q345,Q345B,Q345C,Q345D,20Mn2,30Mn2,40Mn2GB/T8162Hydraulic seamless pipe35#,45#,27SiMn,GB/T17396Automotive axle housing ...