PRODUCT DESCRIPTION
Application:
Broadly used in oilwell, casing pipe, drilling pipe and thread line.
Structure:
Outside Ring: Outer steel and inner plastic, outer plastic and inner steel.
Inside Ring: Outer plastic and inner steel, totally steel cover.
Nominal Size(Inch): 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2.
Thread Mark: LC, STC, STC-S, BC, XC, SMAX, HSC, BHT.
