Specification :

SY/ T6194-96
1.Type -----short thread casing , Couplings and long thread casing
2.Length -----8-13 m
3. inspection of physical properties GB246 - 97 , GB228-87
4. Chemical composition inspection GB222-84
5. Packing ----Bundled up with steel wire / steel belt , screwing on guard ring to protect reveals of Casing pipe , Couplings thread

APISPEC 5CT --1988
1.
Inspection of physical properties ASTME18 or E10 ASTMA370
ASTME23 ASTME112
2.
Chemical composition inspectionASTME59 ASTME350
3.
Standard API5A 5AX 5AC
Grade H-40 , J-55 , N-80 , P-110
C-75 , C-95 , P-110 , Q-125
4.
Specifications-----139.77.72R-2 , 177.89.19R-2 , 244.58.94R-2
244.510.03R-2 , 244.511.05R-2
5.
Length ----R-1: 4.88^ 7.62m
R-2 : 7.62^ 10.36m
R-3: 10.36
or more longer

JAPAN ------ Standard NC-55E , NC-80E , NC-L80 , NC-80HE , etc