1. According with API-5CT criterion 2. Casing threads: Short round thread, long round thread, buttress thread 3. Steel grade: J55, K55, L80, N80, C90, T95, P10 4. Length range: R1, R2, R3... More
Shengli Oilfeild Tongtai International trading Co.,Ltd.
Main Products: tabular goods as casing, tubing, pipeline ect.... More