Standard: API 5CT & 5B Steel Grade: H40,J55, K55, N80, R95,L80, C90, T95, P110, Q125 Dimension: Tubing coupling from 2-3/8³ to 4-1/2³, Casing coupling from 4-1/2³ to 20³ End finish: NUE, EUE (tubing coupling); STC, LTC, BTC (casing coupling) Colors: J55/ K55-Bright Green,P110-White, N80/ L80-Red etc PACKING: by wooden cases, wooden pallet, or as per customer request Feel free to contact us if any further questions,we will serve you as soon as possible.
