OCTG VJF INERNATIONAL INC offers API casings, tubings and Drill Pipes from China Mills at competive price and delivery. Sizes range from 2 3/8” through 20” . Detailed Specifications as follows SPECIFICATIONS OF TUBING AND CASING (INCLUDING COUPLINGS) No. Outside diameter Wall Thickness Type of end-finish Grade Type of Pipe inch mm inch mm 1 2 3/8 60.3 0.190 4.83 NUE、EUE J55、N80、L80、P110 Seamless 2 2 7/8 73.0 0.217 5.51 NUE、EUE J55、N80、L80、P110 Seamless 3 3 1/2 88.9 0.254 6.45 NUE、EUE J55、N80、L80、P110 Seamless 4 4 1/2 114.3 0.205 5.21 STC J55 ERW 5 0.224 5.69 STC、BTC J55 ERW 6 0.224 5.69 STC、BTC J55、K55 Seamless 7 0.250 6.35 STC、LTC、BTC J55 ERW 8 0.250 6.35 STC、LTC、BTC J55、K55、N80、L80、P110 Seamless 9 0.290 7.37 LTC、BTC N80、L80、P110 Seamless 10 0.337 8.56 LTC、BTC N80、L80、P110 Seamless 11 5 1/2 139.7 0.244 6.20 STC J55 ERW 12 0.275 6.98 STC、LTC、BTC J55 ERW 13 0.275 6.98 STC、LTC、BTC J55、K55 Seamless 14 0.304 7.72 STC、LTC、BTC J55 ERW 15 0.304 7.72 STC、LTC、BTC J55、K55、N80、L80、P110 Seamless 16 0.361 9.17 LTC、BTC N80、L80、P110 Seamless 17 0.415 10.54 LTC、BTC N80、L80、P110 Seamless 18 7 177.8 0.231 5.87 STC J55 ERW 19 0.272 6.91 STC J55 ERW 20 0.317 8.05 STC、LTC、BTC J55 ERW 21 0.317 8.05 STC、LTC、BTC J55、K55、N80、L80、P110 Seamless 22 0.362 9.19 STC、LTC、BTC J55 ERW 23 0.362 9.19 LTC、BTC J55、K55、N80、L80、P110 Seamless 24 0.408 10.36 LTC、BTC N80、L80、P110 Seamless 25 8 5/8 219.1 0.264 6.71 STC J55 ERW 26 0.304 7.72 STC J55 ERW 27 0.304 7.72 STC J55、K55 Seamless 28 0.352 8.94 STC、LTC、BTC J55 ERW 29 0.352 8.94 STC、LTC、BTC J55、K55 Seamless 30 0.400 10.16 STC、LTC、BTC J55 ERW 31 0.400 10.16 STC、LTC、BTC J55、K55、N80、L80、P110 Seamless 32 0.450 11.43 LTC、BTC N80、L80、P110 Seamless 33 9 5/8 244.5 0.312 7.92 STC J55 ERW 34 0.352 8.94 STC、LTC、BTC J55 ERW 35 0.352 8.94 STC、LTC、BTC J55、K55 Seamless 36 0.395 10.03 STC、LTC、BTC J55 ERW 37 0.395 10.03 STC、LTC、BTC J55、K55、N80、L80、P110 Seamless 38 0.435 11.05 STC、LTC、BTC N80、L80、P110 Seamless 39 0.472 11.99 STC、LTC、BTC N80、L80、P110 Seamless 40 10 3/4 273.1 0.279 7.09 STC J55 ERW 41 0.350 8.89 STC、BTC J55 ERW 42 0.350 8.89 STC、BTC J55、K55 Seamless 43 0.400 10.16 STC、BTC J55 ERW 44 0.400 10.16 STC、BTC J55、K55 Seamless 45 0.450 11.43 STC、BTC J55、K55、N80、L80 Seamless 46 13 3/8 339.7 0.330 8.38 STC J55 ERW 47 0.380 9.65 STC、BTC J55 ERW 48 0.380 9.65 STC、BTC J55、K55 Seamless 49 0.430 10.92 STC、BTC J55 ERW 50 0.430 10.92 STC、BTC J55、K55 Seamless 51 0.480 12.19 STC、BTC J55、K55、N80 Seamless 52 0.514 13.06 STC、BTC N80 Seamless SPECIFICATIONS OF DRILL PIPE No. Outside diameter Grade inch mm 1 2 7/8 73.0 G105、S135 2 3 1/2 88.9 G105、S135 3 4 101.6 G105、S135 4 4 1/2 114.3 G105、S135 5 5 127.0 G105、S135