APIL80套管接箍BGT2螺纹API5CT套管接箍尺寸：4-1/2,5,5-1/2,6-5/8,7,7-5/8,8-5/8,9-5/8,10-3/4,11-3/4,13-3/8,16,18-5/8,20"螺纹种类：ShortRound-ThreadCasing(STC)LongRound-ThreadCasing(LC)ButtressThreadCasing(BC)钢级：H-40,J-55,K-55,L-80,N-80,C-90,T-95,P-110,L80-13CR,Super-13CR.)