Gusaba ibicuruzwa:
kubaka amashyanyarazi y’umuvuduko mwinshi, imiyoboro ishyushye cyane, imiyoboro y'amazi abira hamwe na moteri ya moteri.
Kubahiriza bisanzwe:
| ASTM A249 A688 A803 |
| JIS G3463 |
| DIN 17457 |
| EN 10217-7 |
| GB / T 24593 |
| NB / T 47019 |
| HG / T 20537.1 |
| GB / T 151 |
