Dimension range (OD inch): 1-1/2”----4 1/2” Dimension range (OD mm): 26.67----114.3 Type of upset: NUE, EUE, Plain end. Standard: API SPEC 5CT Main Steel Grade: H40, J55, N80, N80Q, L80, L80-1, L80-9Cr, L80-13Cr, P110 etc. Type of Tubing: Non-upset tubing (NU), External-upset tubing (EUE), Integrated Joint (IJ).

Product: Drill Collar Standard:API SPEC 7-1 Steel grade:AISI 4145H Sizes:3 1/8" -- 11" Connected Type:NC, IF, REG

Application: Used as Walls Structural Retainers and Screen Pipes for Oil, Gas and Water Wells Specification: OD: 50mm - 500mm;WT: less than 20mm;LENGTH: less than 15m Slot&Holes Specification: as customer require Standard & Grade: API , API5CT J55/K55/N80/C75/L80/C90/T95/Q125 Process Type: Seamless (SMLS), Electric Resistance Welded (ERW) End: Plain, Beveled, Square Cut, With LTC/STC/BTC Connection Surface: Anti-corrosion&water Painting Packing: Protection Caps in Both Ends, Waterproof Paper Wrapped

Application: Used for Mine, water well drilling, well drilling, coal and fore poling Size:OD: 60.32mm-168.28mm,WT: 6.45-12.7mm,LENGTH: R1, R2, R3 Pipe Standard:API 5DP E75, X95, G105, S135 Upset Style:IU, EU, IEU Connection:NC26 - NC50, 5 1/2FH, 6 5/8FH Internal coating:TK34,TC2000, Arnco 100XT, 200XT, 300XT

Product:Casing and Tubing Coupling, Casing Coupling, Tubing Coupling Application:Used for connect 2 joints of tubing or casing Size:Tubing Coupling : 1.9'' - 4-1/2'' Casing Couping : 4-1/2'' - 13-3/8'' Pipe Standard: API 5CT and 5B PSL1/PSL2 J55,K55,N80-1,N80-Q,API 5CT and 5B L80-1,C90, C95,T95, P110, Q125 Surface:Whole Phosphating or inside phosphating and outside coating Thread:NUE, EUE, STC, LTC, BTC etc

Application：Oil well casing serves as well sidewall Pipe Standard：API SPEC 5CT Size：OD: 114.3-508mm,WT: 5.21-16.13mm Process Type: Seamless (SMLS), Electric Resistance Welded (ERW) Grade: J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr,C95, P110. Thread types:STC, LTC, BTC etc