Other, longitudinally welded (HS 730512)
Other, longitudinally welded (HS 730512) has 1,175 U.S. import bill-of-lading shipment records between Jan 2020 and Jun 2026. The largest U.S. importer of Other, longitudinally welded is SALZGITTER MANNESMANN SALZGITTER MANNESMANN INTERNATIONALUSA INC, with 360 shipments, followed by YUSA CORP and TSMC ARIZONA CORP. The leading supplier is MANNESMANN LINE PIPE GMBH, with 414 shipments, followed by YAMASHITA RUBBER CO LTD and UNITED INTEGRATED SERVICES CO LTD. Goods originate mainly from GERMANY and JAPAN, arriving primarily at LOS ANGELES, CA. Import volume has declined over the past 12 months versus the prior year.
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through June 2026
Shipments over time (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Other, longitudinally welded (HS 730512), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is MANNESMANN LINE PIPE GMBH → SALZGITTER MANNESMANN SALZGITTER MANNESMANN INTERNATIONALUSA INC with 360 shipments, followed by YAMASHITA RUBBER CO LTD → YUSA CORP (245) and UNITED INTEGRATED SERVICES CO LTD → TSMC ARIZONA CORP (173).
Top U.S. importers
| Importer | Shipments |
|---|---|
| SALZGITTER MANNESMANN SALZGITTER MANNESMANN INTERNATIONALUSA INC | 360 |
| YUSA CORP | 245 |
| TSMC ARIZONA CORP | 178 |
| EDGEN MURRAY CORP | 52 |
| ALUMA FORM INC | 49 |
Top suppliers
| Supplier | Shipments |
|---|---|
| MANNESMANN LINE PIPE GMBH | 414 |
| YAMASHITA RUBBER CO LTD | 245 |
| UNITED INTEGRATED SERVICES CO LTD | 173 |
| YANGZHOU MENGTA LINE FITTING CO | 40 |
| YANGZHOU MENGTA LINE FITTINGS CO | 40 |
Origin countries
| Country | Shipments |
|---|---|
| GERMANY | 419 |
| JAPAN | 280 |
| CHINA | 203 |
| TAIWAN | 194 |
| REPUBLIC OF KOREA | 12 |
| BELGIUM | 11 |
| MOROCCO | 11 |
| INDIA | 10 |
| VIET NAM | 9 |
| SPAIN | 6 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| LOS ANGELES, CA | 442 |
| HOUSTON, TX | 428 |
| LONG BEACH, CA | 101 |
| SAVANNAH, GA | 54 |
| SEATTLE, WA | 50 |
| TACOMA, WA | 34 |
| NORFOLK, VA | 25 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 12 |
| SAN DIEGO, CA | 5 |
| SAN JUAN, PUERTO RICO | 5 |
Harmonized System classification
HS code 730512 — Other, longitudinally welded. The Harmonized System is the international standard for classifying traded goods; U.S. Customs records this 6-digit code on every bill of lading.
Frequently asked questions about importing Other, longitudinally welded
Who imports Other, longitudinally welded (HS 730512)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Other, longitudinally welded include SALZGITTER MANNESMANN SALZGITTER MANNESMANN INTERNATIONALUSA INC, YUSA CORP, TSMC ARIZONA CORP, EDGEN MURRAY CORP, and ALUMA FORM INC.
Who is the largest U.S. importer of Other, longitudinally welded?
SALZGITTER MANNESMANN SALZGITTER MANNESMANN INTERNATIONALUSA INC is the largest U.S. importer of Other, longitudinally welded (HS 730512), with 360 bill-of-lading shipment records.
Who are the top suppliers of Other, longitudinally welded?
Leading suppliers shipping Other, longitudinally welded (HS 730512) to the U.S. include MANNESMANN LINE PIPE GMBH, YAMASHITA RUBBER CO LTD, UNITED INTEGRATED SERVICES CO LTD, YANGZHOU MENGTA LINE FITTING CO, and YANGZHOU MENGTA LINE FITTINGS CO.
How many U.S. shipments of Other, longitudinally welded are there?
ImportDoor has 1,175 U.S. import shipment records under HS code 730512, spanning Jan 2020 to Jun 2026.
Where is Other, longitudinally welded imported from?
Other, longitudinally welded is imported into the U.S. primarily from GERMANY, JAPAN, and CHINA.
Find Other, longitudinally welded importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 730512, with contact details and container-level shipment records on ImportDoor.
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