Isicelo somkhiqizo:
esetshenziswa kabanzi emishinini, imishini yezokwelapha, imishini yokuqina, i-Qizheng, izitimela ezinesivinini esikhulu, izimoto, ifenisha, umhlobiso nezinye izinjongo.
Ukuthobela okujwayelekile:
| I-ASTM A554 |
| I-GB/T 12770 |
| I-JIS G3446 |
| I-JG/T 3030 |
| I-YB/T 5363 |
