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We are Qiancheng steel-pipe co.,ltd，sell API 5CT N80 oil pipe，and supply API 5CT J55 API 5CT K55 API 5CT N80 API 5CT N80-1 API 5CT N80Q API 5CT L80 API 5CT L80-1 API 5CT C95 API 5CT C90 API 5CT T95 API 5CT P110 API 5CT Q125.
we also supply 20G SA210A SA106B SA-210C SA106C 16MN SA333 GR.6 25-50#  16-25Mn 25-

50Mn  20-50Mn2 20Cr 40Cr 12-42CrMo
Geological tube DZ60 45MnMoB 25CRMnMo DZ40 50Mn  37Mn5 DZ50/DZ55 45Mn2 42MnMo7

R780 42MnMo7
15Mo3 16Mo3 30Cr1MoVG 12CR1MoVG ASTM A209 T1 ASTM A335 P1 ASTM A209

T1A ASTM A213 T11 ASTM A213 T12 ASTM A335 P11 ASTM A213 P22 ASTM A213

T23 ASTM A213 T24 Steel Research102 WB36 ASTM A213 T5 ASTM A335 P5 ASTM A213 T9

ASTM A335 P9 ASTM A335 T91 ASTM A335 P91
Cylinder tube 34MN2V 30CRMO 35CRMO 34CRMO4
Casing API 5CT J55 API 5CT K55 API 5CT N80-1 API 5CT N80Q API 5CT L80-1 API 5CT P110 API 5CT C95 API 5CT C90 API 5CT T95 API 5CT Q125

API 5CT P110 26-32CRMO4 26CRMONBTIB
Drill Pipe E75 X95 G105 S135
Line pipe API 5L GR.A API 5L GR.B API 5L X42 API 5L X46 API 5L X52 API

5L 56 API 5L X60 API 5L X65 API 5L X70 API 5L X80 API 5L GR.A PSL2 API

5L GR.B PSL2 API 5L X42 PSL2 API 5L X46 PSL2 API 5L X52 PSL2 API 5L

X56 PSL2 API 5L X60 PSL2 API 5L X65 PSL2 API 5L X70 PSL2 API 5L X80

PSL2 with NACE  API 5L L210 API 5L L245 API 5L L290 API 5L L320 API 5L L360 API 5L L390 API 5L L415 API 5L L450 API 5L L485

API 5L L555 API 5L L210S API 5L L245S API 5L L290S API 5L L320S API 5L L360S API 5L X56 S API 5L L415S API 5L L450S API 5L L485S

API 5L L555S
hydrostatic 27SiMn
automotive axle housing tube 45# 20Mn2 30Mn2 45Mn2 40Cr
Q345A Q345B Q345C Q345D Q345E Q390A Q390B Q390C Q390D