天津凤宝石油装备-APIL80套管接箍-订购中套管接箍螺纹扣型:短圆(STC)、长圆(LC)、偏梯形(BC)特殊扣螺纹?常规接箍、特殊间隙联接器、组合联接箍、减径接箍、密封环接箍和特殊坡口接箍。石油套管类?:规格:4-1/2”,5”,5-1/2”,6-5/8”,7”,7-5/8”,8-5/8”,9-5/8”,3-1/2EU镀铜接箍,10-3/4”,11-3/4”,4-1/2NUE镀铜接箍,13-3