| No | description | HS CODE |
| 1 | Ordinary tubing 48.3 * 3.68mm R2 N80 NUE | 7304231000 |
| 2 | Small square steel 40 * 40 * 3mm Q235A | 7306610000 |
| 3 | Ordinary plate 8 * 1550 * 5000mm Q235B | 7219220000 |
| 4 | Tread plate 5mm Q235 | 7208400000 |
| 5 | Welded steel pipe DN20 (3/4 ") | 7305900000 |
| 6 | Welded steel pipe DN25 (1 ") | 7305900000 |
| 7 | Copper rods round 80mm T2 Y | 7407109000 |
| 8 | Brass rod 20mm | 7407211100 |
| 9 | Brass rods round φ120mm T2 | 7407211100 |
| 10 | Copper tube φ8 * 1.5mm | 7411109000 |
| 11 | Copper Tube 4 * 2mm T2 | 7411109000 |
| 12 | Copper 10mm 1mm T3 | 7411109000 |
| 13 | Copper 6mm 1mm T3 | 7411109000 |
| 14 | Copper 8mm 1mm T3 | 7411109000 |
| 15 | Copper 12mm 1mm T3 | 7411109000 |
| 16 | Copper pipe 20 * 2mm T2Y | 7411109000 |
| 17 | Copper Tube 8 * 1mm T2 Y | 7411109000 |
| 18 | Copper pipe 14 * 2mm | 7411109000 |
| 19 | Copper 12 * 1.5mm T2Y M | 7411109000 |
| 20 | Copper 16 * 1mm T2Y M | 7411109000 |
| 21 | Copper 16 * 2mm T2Y M | 7411109000 |
| 22 | Copper tube 14mm T2Y | 7411109000 |
| 23 | Copper pipe 10 * 2mm brass | 7411109000 |
| 24 | Copper pipe φ18 * 1.5mm T2 | 7411109000 |
| 25 | Copper pipe 10 * 1mm T2 (Y.R.M) | 7411109000 |
| 26 | 0.3 * 200mm copper copper belt leather | 7409111000 |
| 27 | Copper belt 0.2 * 200mm T2 Y | 7409111000 |
