4-1/2 Inch Surface Casing L80
Seamless L80 nonalloy steel surface casing, 4-1/2 inch for shallow well protection. Prevents cave-ins. HTS 7304.29.20 for other nonalloy casing.
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If for line pipe use
Surface casing repurposed as welded line pipe changes heading.
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Import Tips & Compliance
• Match exact grade (L80 type 9Cr optional but nonalloy here)
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