| Material Code Cross Reference | ||
| China | USA | UK |
| ¡¡ | ¡¡ | ¡¡ |
| 2Crl3 | ASTM A420 | BS970 416S21 |
| 45 | ASTM TYPE1045 | BS4190 |
| Graphite Spiral Wound Gasket | ¡¡ | MONEL+GRAPHITE |
| Q235-A | Steel 321 | BS4190 |
| QT450-10 | ASTM A536 Gr. 65-45-12 | BS2789 GR65 |
| SS Combined Gasket | SP120 | 304+GRAPHITE or PTFE SPWND GASKET |
| ZCuZn38Mn2Pb2 Steel Back F4 | B36 | BS1400 |
| ZQSn6-6-3 | ASTM B62-93 | BRONZE |