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- SFJ® – Sharpe Flush Joint Casing With over 1 million metres of casing distributed to the Australian onshore drilling market, Sharpe’s SFJ ® is a proven internally/ externally flush connection proven for casing runs within vertical, horizontal and deviated wells.
API Casing Engineering Data Table Sizes 4.500 - 5.000. Fluids Engineering Data. API Casing Data Table Sizes 4.500 - 5.000. Specification 5C3 of the American Petroleum Institute standardizes 14 casing sizes from 4.5 inches (11.43 cm) to 20 inches (50.80 cm) outside diameter ('OD').
Description
Popular Sizes
The thread dimensions shown in the following chart are those that may be used to determine a thread type in the field. For specific details of the threads, please contact Mills Machine Co.
Popular Sizes
The thread dimensions shown in the following chart are those that may be used to determine a thread type in the field. For specific details of the threads, please contact Mills Machine Co.
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 2 3/8″ Reg. | 3 1/8″ | 3″ | 1″ | 2.625″ | 3 1/4″ | 1 3/4″ | 3″ | 5 | TAPER | |
| 2 7/8″ Reg. | 3 3/4″ | 3 1/2″ | 1 1/4″ | 2.990″ | 3 3/4″ | 2″ | 3″ | 5 | TAPER | |
| 3 1/2″ Reg. | 4 1/4″ | 4 1/2″ | 3 3/4″ | 1 1/2″ | 3.490″ | 4″ | 2 7/16″ | 3″ | 5 | TAPER |
| 4 1/2″ Reg. | 5 1/2″ | 4 1/4″ | 2 1/4″ | 4.600″ | 4 1/2″ | 3 1/4″ | 3″ | 5 | TAPER | |
| 5 1/2″ Reg. | 6 3/4″ | 4 3/4″ | 2 3/4″ | 5.515″ | 5″ | 3 3/8″ | 3″ | 4 | TAPER | |
| 6 5/8″ Reg. | 7 3/4″ | 8″ | 5″ | 3 1/2″ | 5.975″ | 5 1/4″ | 4 3/4″ | 2″ | 4 | TAPER |
| 7 5/8″ Reg. | 8 7/8″ | 9″ | 5 1/4″ | 3 1/2″ | 6.975″ | 5 1/2″ | 5 1/4″ | 3″ | 4 | TAPER |
| 8 5/8″ Reg. | 10″ | 5 3/8″ | 4″ | 7.951″ | 6 1/4″ | 6 5/8″ | 3″ | 4 | TAPER | |
API INTERNAL FLUSH (IF)
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 2″ IF | 2 3/8 | 2 1/4 | 1 1/8 | 1.975 | 2 3/4 | 1 1/2 | 2 | 4 | TAPER | |
| 2 3/8″ IF | 3 1/2″ | 3″ | 1 5/8″ | 2.860″ | 3 1/4″ | 2 1/8″ | 2″ | 4 | TAPER | |
| 2 5/8″ IF LH | 3 3/4″ | 3 1/4″ | 1 3/4″ | 3.128″ | 3 5/8″ | 2 1/4″ | 2″ | 4 | TAPER | |
| 2 7/8″ IF | 4 1/8″ | 4 1/2″ | 3 1/2″ | 2 1/8″ | 3.385″ | 3 3/4″ | 2 1/2″ | 2″ | 4 | TAPER |
| 3 1/2″ IF | 4 3/4″ | 4″ | 2 11/16″ | 4.000″ | 4 1/4″ | 3 1/4″ | 2″ | 4 | TAPER | |
| 4″ IF (4 1/2″ XH) | 6″ | 4 1/2″ | 3 1/4″ | 4.828″ | 4 3/4″ | 3 1/2″ | 2″ | 4 | TAPER | |
| 4 1/2″ IF (5″ XH) | 6 1/8″ | 4 1/2″ | 3 3/4″ | 5.250″ | 4 3/4″ | 4″ | 2″ | 4 | TAPER | |
| 5 1/2″ IF | 7 3/8″ | 5″ | 4 13/16″ | 6.390″ | 5 1/2″ | 5 1/16″ | 2″ | 4 | TAPER | |
| 6 5/8 IF | 9″ | 5″ | 3 3/4 | 7.459 | 5 5/8 | 6 1/4 | 2 | 4 | TAPER | |
API FULL HOLE (FH)
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 2 7/8″ FH | 4 1/4″ | 4 1/2″ | 3 1/2″ | 2 1/8″ | 3 7/8″ | 2 1/8″ | 3″ | 5 | TAPER | |
| 3 1/2″ FH | 4 5/8″ | 3 3/4″ | 2 7/16″ | 3.990″ | 4″ | 2 7/8″ | 3″ | 5 | TAPER | |
| 4″ FH | 5 1/4″ | 4 1/2″ | 2 13/16″ | 4.270″ | 4 3/4″ | 3 1/4″ | 2″ | 4 | TAPER | |
| 4 1/2″ FH | 5 3/4″ | 4″ | 3″ | 4.782″ | 4 1/4″ | 3 1/4″ | 3″ | 5 | TAPER | |
| 5 1/2″ FH | 7″ | 5″ | 4″ | 5.828″ | 5 1/2″ | 4 1/4″ | 2″ | 4 | TAPER | |
| 6 5/8″ FH | 8″ | 5″ | 5″ | 6.740″ | 5 1/2″ | 5 1/2″ | 2″ | 4 | TAPER | |
MAYHEW
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| JUNIOR (MJ) | 2 3/4″ | 2 1/4″ | 1 1/4″ | 2.320″ | 2 1/2″ | 1 11/16″ | 2″ | 4 | TAPER | |
| REGULAR (MR) | 3 1/4″ | 3″ | 1 1/2″ | 2.555″ | 3 1/4″ | 2″ | 1 1/2″ | 4 | TAPER | |
| FULLHOLE (MFH) | 3 3/4″ | 3 3/8″ | 2″ | 3.045″ | 3 5/8″ | 2 3/8″ | 1 1/2″ | 4 | TAPER | |
FAILING EXPLORATION
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 2 3/8″ FEDP | 3 1/8″ | 2 3/4″ | 1 3/8″ | 2.480″ | 3″ | 1 3/4″ | 2″ | 4 | TAPER | |
| 2 7/8″ FEDP | 3 3/4″ | 3 1/4″ | 1 7/8″ | 3.100″ | 3 1/2″ | 2 1/4″ | 2″ | 4 | TAPER | |
SQUARE THREAD & DCDMA THREADS
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 3 THREAD N ROD | 2 3/8″ | 2 3/4″ | 1″ | 1.860″ | 3″ | 1 5/8″ | 3 | SQUARE | ||
| 4 THREAD N ROD | 2 3/8″ | 2 3/4″ | 1″ | 1.865″ | 3″ | 1 5/8″ | 4 | SQUARE | ||
| A ROD | 1 5/8″ | 1 7/8″ | 9/16″ | 1.260″ | 2 1/8″ | 1 1/16″ | 3 | SQUARE | ||
| AW ROD | 1 3/4″ | 1 7/8″ | 5/8″ | 1.365″ | 2 1/8″ | 1 1/4″ | 3 | SQUARE | ||
| AWJ (AWML) | 1 3/4″ | 1 3/4″ | 5/8″ | 1.425″ | 1 7/8″ | 1″ | 2″ | 5 | TAPER | |
| E ROD | 1.305″ | 1 3/4″ | 7/16″ | 0.996″ | 2″ | 7/8″ | 3 | SQUARE | ||
| B W | 2 3/8″ | 2 1/4″ | 3/4″ | 1.680″ | 2 5/8″ | 1 3/8″ | 3 | SQUARE | ||
| BQ | 2 3/16″ | 4 3/4″ | 1 13/16″ | 2″ | 1 13/16″ | 1/2″ | 3 | TAPER | ||
| HW | 3 1/2″ | 3 1/4″ | 2 1/4″ | 3 1/2″ | 2 13/16″ | 3 | SQUARE | |||
| EW | 1 3/8″ | 1 9/16″ | 7/16″ | 1.050″ | 1 3/4″ | 7/8″ | 3 | SQUARE | ||
| NW | 2 5/8″ | 2 3/4″ | 1 3/8″ | 2.210″ | 3″ | 2″ | 3 | SQUARE | ||
| NWJ (NWML) | 2 5/8″ | 2 3/8″ | 1 1/4″ | 2.240″ | 2 3/4″ | 1 1/2″ | 2″ | 4 | TAPER | |
Other Sizes
API X-HOLE (XH)
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 3 1/2″ XH | 4 7/8″ | 3 1/2″ | 2 7/16″ | 3.800″ | 3 7/8″ | 2 7/8″ | 2″ | 4 | TAPER | |
| 4 1/2″ XH | 6″ | 4 1/2″ | 3 1/4″ | 4.828″ | 4 3/4″ | 3 1/2″ | 2″ | 4 | TAPER | |
| 5″ XH | 6 1/8″ | 4 1/2″ | 3 3/4″ | 5.250″ | 4 3/4″ | 4″ | 2″ | 4 | TAPER | |
HACKER
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| JUNIOR | 3 1/8″ | 2 1/4″ | 1 7/8″ | 2.685″ | 2 3/4″ | 2 1/8″ | 1 3/4″ | 5 | TAPER | |
| SENIOR | 3 1/2″ | 2 1/2″ | 1 3/4″ | 2.895″ | 2 3/4″ | 2 1/4″ | 1 1/2″ | 4 | TAPER | |
| 4″ HACKER | 5 7/8″ | 3 5/8″ | 3 3/4″ | 5.215″ | 4″ | 4 3/8″ | 1 1/2″ | 4 | TAPER | |
| 6 5/8″ HACKER | 7 1/2″ | 3 1/16″ | 6″ | 6.935″ | 3 1/2″ | 6 1/4″ | 1 1/2″ | 4 | TAPER | |
| 8 5/8″ HACKER | 10 1/2″ | 4 1/2″ | 7 1/2″ | 9.460″ | 5″ | 8″ | 2″ | 4 | TAPER | |
BECO
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 3 1/2″ BECO | 4 3/4″ | 3 3/4″ | 1 1/2″ | 3.970″ | 4 1/4″ | 2 1/4″ | 3″ | 2 | TAPER | |
| 4 1/2″ BECO | 5 3/4″ or 6 1/2″ | 4 1/4″ | 2 1/4″ | 5.000″ | 5″ | 3 1/4″ | 3″ | 2 | TAPER | |
| 5 1/4″ BECO | 7″ | 5 3/4″ | 2 13/16″ | 5.750″ | 5 1/2″ | 3 3/4″ | 3″ | 2 | TAPER | |
| 6″ BECO | 7 5/8″ or 8 3/4″ | 6 1/2″ | 3″ | 6.500″ | 5 1/2″+ | 4 1/2″ | 3″ | 2 | TAPER | |
| 8″ BECO | 10 3/4″ or 12 3/4″ | 4 7/8″ | 5″ | 8.500″ | 5 1/2″+ | 6 1/4″ | 3″ | 2 | TAPER | |
CA-21 (DEEP ROCK)
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| CA 21 | 2 1/4″ | 1 1/4″ | 1 1/8″ | 1.765″ | 1 1/2″ | 1 1/2″ | 1 1/2″ | 6 | TAPER | |
E U E
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 3/4″ (1.050″ API) | 1.560″ | 1 1/8″ | 1.315″ | 0.825″ | 1 3/8″ | 3/4″ | 10 | TAPER | ||
| 1″ (1.315″ API) | 1.900″ | 1 1/4″ | 1.469″ | 1.049″ | 1 1/2″ | 3/4″ | 10 | TAPER | ||
| 1 1/4″ (1.660″ API) | 2.200″ | 1 3/8″ | 1.825″ | 1.380″ | 1 3/4″ | 1 1/2″ | 3/4″ | 10 | TAPER | |
| 1 1/2″ (1.900″ API) | 2.500″ | 1 7/16″ | 2.093″ | 1.610″ | 1 7/8″ | 1 3/4″ | 3/4″ | 10 | TAPER | |
| 2″ (2 3/8″ API) | 3.063″ | 1 15/16″ | 2.625″ | 1.995″ | 2 3/8″ | 2 1/4″ | 3/4″ | 8 | TAPER | |
| 2 1/2″ (2 7/8″ API) | 3.668″ | 2 1/8″ | 3.113″ | 2.441″ | 2 1/2″ | 2 1/2″ | 3/4″ | 8 | TAPER | |
| 3″ (3 1/2″ API) | 4.500″ | 2 3/8″ | 3.795″ | 2.992″ | 2 3/4″ | 3 5/16″ | 3/4″ | 8 | TAPER | |
| 3 1/2″ (4″ API) | 5.000″ | 2 1/2″ | 4.250″ | 3.476″ | 2 7/8″ | 3/4″ | 8 | TAPER | ||
| 4″ (4 1/2″ API) | 5.563″ | 2 5/8″ | 4.790″ | 3.958″ | 3″ | 3/4″ | 8 | TAPER | ||
HACKER FAILING
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 6 5/8″ HF | 8″ | 3 1/2″ | 6″ | 7.310″ | 4 1/2″ | 6 1/2″ | 1.5″ | 4 | TAPER | |
MOBILE
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 2 5/8″ MOBILE | 2 5/8″ | 2 1/2″ | 1 1/4″ | 2.240″ | 2 7/8″ | 1 3/4″ | 2″ | 5 | TAPER | |
NATIONAL PIPE THREAD
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 1″ NPT | 1 3/4″ | 1″ | 1″ | 1.325″ | 1 1/4″ | 1 1/8″ | 3/4″ | 11 1/2 | TAPER | |
| 1″ NPT LH | 1 3/4″ | 1″ | 1″ | 1.325″ | 1 1/4″ | 1 1/8″ | 3/4″ | 11 1/2 | TAPER | |
| 1 1/4″ NPT | 2″ | 1″ | 1 1/4″ | 1.660″ | 1 1/4″ | 1 3/8″ | 3/4″ | 11 1/2 | TAPER | |
| 1 1/2″ NPT | 2 1/4″ | 1 1/8″ | 1 1/2″ | 1.950″ | 1 3/8″ | 1 5/8″ | 3/4″ | 11 1/2 | TAPER | |
| 2″ NPT | 2 3/4″ | 1 1/8″ | 2″ | 2.385″ | 1 5/8″ | 2 1/8″ | 3/4″ | 11 1/2 | TAPER | |
| 2″ NPT LH | 2 3/4″ | 1 1/8″ | 2″ | 2.385 | 1 5/8″ | 2 1/8″ | 3/4″ | 11 1/2 | TAPER | |
| 2 1/2″ NPT | 3 1/4″ | 1 9/16″ | 2 1/2″ | 2.875″ | 1 3/4″ | 2 5/8″ | 3/4″ | 8 | TAPER | |
| 3″ NPT | 4″ | 1 5/8″ | 3″ | 3.500″ | 1 7/8″ | 3 1/8″ | 3/4″ | 8 | TAPER | |
| 3″ NPT LH | 4″ | 1 5/8″ | 3″ | 3.500″ | 1 7/8″ | 3 1/8″ | 3/4″ | 8 | TAPER | |
| 3 1/2″ NPT | 4 5/8″ | 1 11/16″ | 3 1/2″ | 4.000″ | 2 1/16″ | 3 5/8″ | 3/4″ | 8 | TAPER | |
| 3 1/2″ NPT LH | 4 5/8″ | 1 11/16″ | 3 1/2″ | 4.000″ | 2 1/16″ | 3 5/8″ | 3/4″ | 8 | TAPER | |
| 4″ NPT | 5 1/4″ | 1 3/4″ | 4″ | 4.510″ | 2 1/4″ | 4 1/8″ | 3/4″ | 8 | TAPER | |
| 4″ NPT LH | 5 1/4″ | 1 3/4″ | 4″ | 4.510″ | 2 1/4″ | 4 1/8″ | 3/4″ | 8 | TAPER | |
| 4 1/4″ NPT | 4 1/4″ | 4.250″ | 3/4″ | 8 | TAPER | |||||
| 5″ NPT | 6 5/16″ | 2″ | 5″ | 5.563″ | 2 1/2″ | 5 1/4″ | 3/4″ | 8 | TAPER | |
| 6″ NPT | 7 3/8″ | 2″ | 6″ | 6.625″ | 2 1/2″ | 6 1/4″ | 3/4″ | 8 | TAPER | |
PK RED DEVIL
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| P K Red Devil | 2 7/8″ | 3 7/8″ | 1 3/8″ | 2.300″ | 4 1/4″ | 1 7/8″ | 3/4″ | 8 | TAPER | |
ROCKMASTER
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| ROCKMASTER | 2 3/4″ | 3″ | 1 1/8″ | 2.030″ | 3 1/4″ | 1 3/4″ | 3 | ACME | ||
WINTER WEISS
| Material | Pin Dimensions | Box Dimensions | Thread | |||||||
| Tool Joint Name & Nominal Size | O.D. | Make to Dia. | Pin Length | Pin ID | Pin Dia. @ Base | Box Length | Box Max ID | Taper | Thread / Inch | Thread Form |
| 2 3/8″ WW Mod. | 3 1/4″ | 3″ | 1 1/2″ | 2.535″ | 3 1/4″ | 2″ | 1.5″ | 4 | TAPER | |
| 2 7/8 WW Mod. | 3 7/16″ | 3″ | 1 1/2″ | 2.535″ | 3 1/4″ | 2″ | 1.5″ | 4 | TAPER | |
VAM® has been the leading brand of premium connections in the oil and gas industry for over 50 years. Each year VAM® designs new connections, extends product lines and qualifies new sizes to the most stringent specifications to meet our customer needs. VAM® Research & Development teams can customize connection designs to new sizes or meet requirements for specific well conditions.
The connection selection guide helps you find the VAM® connection that best fits your E&P needs.
For assistance in choosing the best connection for your oil and gas project, contact VAM USA sales team.
Advanced technology (ISO:2011/API2013 CAL IV)
High compression standard (ISO:2002 CAL IV)
Standard premium
Easy Running
Big, Strong, Reliable
Semi premium reference
Semi-Flush high performances
Large OD Flush high performance
Flush joint connection for severe liner applications
Superior pressure resistance
+ Dopefree
Extreme High Torque
Advanced premium T&C High torque
High Torque standard (ISO:2002 CAL IV)
Extreme High Torque Flush
Semi-Flush high performances
Flush premium
Large OD Flush high performance
Flush joint connection for severe liner applications
Superior pressure resistance
+ Dopefree
Advanced technology (ISO:2011/API2013 CAL IV)
Standard premium
High compression standard (ISO:2002 CAL IV)
+ Dopefree
Advanced technology Special Clearance
Standard premium special clearance
Extreme High Torque Flush
Semi-Flush high performances
Flush premium
Large OD Flush high performance
Flush joint connection for severe liner applications
Superior pressure resistance
+ Dopefree
Advanced technology (ISO:2011/API2013 CAL IV)
Easy Running
Big, Strong, Reliable
Large OD Flush high performance
Flush joint connection for severe liner applications
Superior pressure resistance
Extreme High Torque
Advanced premium T&C High torque
High Torque standard (ISO:2002 CAL IV)
Semi premium reference
Extreme High Torque Flush
Production Riser with external seal and highest fatigue performance
4 Flush Joint Casing Specs
Fatigue enchanced VAM® TOP for drilling, production, Work over
Work Over riser, high number of make and breaks, external seal
Advanced technology for Steam Well
Steam well standard
Advanced technology slim line (ISO:2011/API2013 CAL IV)
Extreme High Pressure Heavy wall
Performance Heavy Wall
Heavy wall flush
Extreme high torque
Advanced premium T&C high torque
High torque standard (ISO:2002 CAL IV)
Extreme high torque flush
Extreme High Torque
Advanced premium T&C High torque
High Torque standard (ISO:2002 CAL IV)
Semi premium reference
Extreme High Torque Flush
Advanced premium T&C High torque
5.5 Casing Specs
High Torque standard (ISO:2002 CAL IV)
Semi premium reference
13 3 8 Casing Specs
Advanced semi-flush Shale Gas
Extreme torque semi-flush Shale Gas
Standard premium Shale Gas
Extreme High Pressure Connection
Advanced technology
(ISO:2011/API2013 CAL IV)
Performance Heavy Wall
Semi-Flush high performances
Large OD Flush high performance
Casing Specs Chart
Large OD Flush high performance
Big, strong, reliable
Easy Running
Semi-Flush high performances
Superior pressure resistance
9 5 8 Casing Specs
VAM® is a registered trademark of Vallourec Oil and Gas France