Ungrouped

4'' drill pipe*8.38mm*NC46*R2*EU

API 2 3/8'' drill pipe, 2 3/8'' IF connection

API drill pipe with hardbanding and plastic coating

API drill pipe manufacturers. all process made in longway

3.5'' drill pipe, 88.9mm*9.35mm*R2*NC38*EU

drill pipe price; Chinese drill pipe exporting

50-127mm drill pipe, R1-R3, E75-S135 grade

5''(127mm) grade S135 drill pipe factory

API 5DP 2-7/8'' drill pipe/OCTG/ drill rod/downhole drilling pipe

API 5DP 3-1/2'' drill pipe/downhole pipe/drilling pipe/water drilling

2-7/8'', grade E75 well drilling drill pipe factory

3.5'', grade g105 drill pipe on hot sale!!!