Standard: API Spec7-1, API Spec7-2 and API RP7G, DS-1 and NS-1.
Size: 2 7/8” ~ 6 5/8”
Type: Integral and welded; Slick / Spiral
Connection: API NC31 to NC50, 5 1/2FH, 6 5/8 FH
Hard band: ARNCO series, DURABAND and TCS series.
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