Application: Tubing is used to extracting petroleum and natural gas from a well.
Casing servs as walls of a well.
Specification: O. D. 8"inch - 20"inch (Φ 219.08mm - Φ 508mm) W. T. 6.71mm - 16.13mm
Type of End-finish/Threading Type: STC, LC, BC
Grade: H40, J55, K55, N80
Length: ERW R1/R2/R3

Note:
P- Plain end
S- Short round thread
L- Long round thread
B- Buttress thread
N- Non upset
U-External upset
T&C- Threaded and coupled