Oil & Gas Steels Back
Oil & Gas Steels
  • Application Drill Bits, Drill Collar, Reamer, Stabilizer, Tool Joints, Mud Motors, Swivel Joint, Fittings, Crossovers, Unions, Pup Joints, Valves, Wellhead, Xmas tree, Choke&Kill Line…
  • Typical grade 1340, 4130/4130M, 4137, 4140/4140M, 4145M, 4330V, 4715, 4715Ca2, 4815MCa2, 4820, 8630M, EN27, EN30B, 2.25Cr1Mo/F22…

执行时间:0.04212498664856秒 查询数据库4次 内存使用:4.227 mb - 393.203 kb = 3.843 mb 当前模式:developer