API 5B CouplingGRADE: J55, K55, N80-1, N80-Q, L80, C90, P110,Q125;SIZE: Tubing coupling from 1.050" to 4-1/2", Casing coupling from 4-1/2” to 20”;TYPE: NUE, EUE (tubing coupling), STC, LC, BTC (ca ...
Tianjin Dalipu Oil Country Tubular Goods Co.,Ltd
Main Products: Oil Casing, Tubing, Line Pipe, Seamless Steel Pipe, Coupling... More