OD Range: 1.050" -30" (We are only one of casing pipe manufactuer in China being able to make the casing pipe as large as 30".)
Steel Grade: J55, K55, N80, N80Q, L80 9Cr 13Cr, C90, T95, P110, Q125.
API Connections: STC, LTC, BTC, U, NU, N
Premium Connection: VAM, VAM TOP, HUNTING, HYDRIL, JFE, TPCO. 
