... To Bolivia,Indonesia,Russia,South America,ect N80 API oil casing pipe Advantage1. High precision in size and shape2. ... K55, L80, N80, P110 type of oil casing pipe thread 1.OD: 10.3-1219.2mm 2.WT: ... 3. Material:Carbon Steel Q235 type of casing pipe thread Thickness1.24-60mmOut diameter10.3-1219.2mmLength6000-12000mmStandardAISI ... , BS, DIN, GB, JISMaterialA25,A,B,X42,X46,X52,X56,X60,X65,X70,X80 H40 J55 K ...