Seamless API 5CT casing pipe / tubing / coupling Standard: API 5CT OD: 48.26mm – 508mm WT: 3mm – 35mm Material: H40 、 J55 、 K55 、 M65 、 L80-1 、 N80-1 、 N80Q 、 C90 、 P110 、 Q125 Thread Type: LC, STC, BTC Length Range: R1, R2, R3 Surface: External coating, varnish Welcom to inquiry us for any product you are interested! Shanghai ShengQiu Materials Co., Ltd WhatsApp: 008613761124029 Email: sales@sqsteelpipe.com Website: www.sqsteelpipe.com Shanghai ShengQiu offers a complete range of API 5CT steel casing and tubing pipe for kinds of demands in oil exploration and production. Material includes H40 、 J55 、 K55 、 M65 、 L80-1 、 N80-1 、 N80Q 、 C90 、 P110 、 Q125. Steel Casing Pipe Appearance Casing pipe section shape is round, in big diameter pipe and put it into the oil well, fixed by the cement, to protect other equipment which mostly made of iron and steel. Oil well shall be designed to bear the different strength of external power, as crush, explode...