用于钻井作业的套管和油管 管道和套管 * 标准: API规格说明5CT * 应用:油管用来从井中抽取石油和天然气。套管用作油井的井壁。 *钢种: J55、K55、N80、L80、C90、T95、P110 * 规格范围: 请访问我们的网站获取更多细节 产品英文描述: Tubing and Casing * Standard : API SPEC 5CT * Application : Tubing is used to extracting petroleum and natual gas from a well .Casing serves as walls of a well . * Steel Grade : J55,K55,N80,L80,C90,T95,P110 * Range o ...SFEIR TRADING CO SAL