Seamless Steel Pipes, Material : Carbon Steel

With material of high-quality proved by used for many years and the scientific experiments ,the tubing casing model j55, k55,n80 with material of high-quality proved by used for many years and the scientific experiments ,the tubing casing model j55, k55,n80, l80 and p110 our company saled were made of after a multi-channel precision machining processes, together with strict quality control procedures. standard: api 5ct , api 5b 1) sizes: od 4 1/2"~16"(114.3~406.4mm) 2) grade: j55, k55, n80, l80, p110 3) standard: api 5ct, api 5b oil casing api 5ct k55,j55 pipe