Of other base metal
Flexible tubing of base metal other than iron or steel
HSN 8307 90 00 (flexible tubing of base metal other than iron or steel, with or without fittings) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code, bill of entry, commercial invoice, packing list. Flexible tubing of iron or steel — classified separately within Chapter 83 — may attract distinct compliance, and fittings of certain metals can fall under other headings depending on their primary function.
The principal importer risk at this tariff line is misclassification: customs officers may re-classify tubing that is iron or steel in composition, or tubing supplied with integral fittings that alter the product's primary character, into a heading that does carry compliance. Re-classification on examination triggers detention pending retrospective compliance and potential duty recovery. Verify the metal composition, wall construction, and fitting configuration against the customs tariff before relying on the absence of compliance at this line.