Ukusetyenziswa kwemveliso:
isetyenziswa kakhulu koomatshini, izixhobo zonyango, izixhobo zokuzilolonga, iQizheng, oololiwe abahamba ngesantya esiphezulu, iimoto, ifanitshala, ukuhombisa kunye nezinye iinjongo.
Ukuthotyelwa okusemgangathweni:
| I-ASTM A554 |
| GB/T 12770 |
| I-JIS G3446 |
| JG/T 3030 |
| YB/T 5363 |
