Price on request
| HS code | 6903 |
|---|---|
| Country of origin | China |
The official riser-tube entry covers silicon-nitride ceramic components for thermal metal-processing applications. An enquiry should state tube geometry, connection arrangement and the operating metal and temperature conditions. Request the proposed material grade and dimensional inspection scope. Review installation support and thermal cycling with the supplier. Confirm suitability and acceptance for the actual foundry process rather than a general ceramic designation. Official product specifications.
| Country | Imports of HS 69 (2024) |
|---|---|
| United States | US$ 8,137 million |
| Germany | US$ 3,126 million |
| France | US$ 2,364 million |
| United Kingdom | US$ 2,068 million |
| South Korea | US$ 1,579 million |
| China | US$ 1,319 million |
| Italy | US$ 1,300 million |
| Canada | US$ 1,210 million |
Reported imports for the whole HS chapter, from UN Comtrade. This is market-wide demand, not a statement about any supplier on this site.
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