Codsiga alaabta:
Loo isticmaalo biyaha qabow ee warshadaha iyo madaniga ah, biyaha kulul, kulaylinta, nidaamyada dhuumaha gaaska kulul, nidaamka dab-damiska tuubooyinka qoraxda iyo tuubooyinka geynta dhexe, iwm.
U hoggaansanaanta caadiga ah:
| GB/T 19228 YB/T 4204 |
| GB/T 12771 QB/T 2467 |
| JIS G3448 |
| EN 10312-3S |
