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特征：
- 面对面：JIS B2002 / ANSI B16.10
- 法兰端：JIS B2220 / ANSI B16.5
- 设计标准：ANSI B16.34，API 603
- 测试标准：API 598，API 6D
- 复合铸造体
| Body | CF8/CF8M |
| Stem | SS304/SS316 |
| Packing | Graphite |
| Packing Gland | CF8 |
| Handle | Cast Iron |
| Handle Nut | SS304 |
| Nut | ASTM A194 B8 |
| End Cap | CF8/CF8M |
| Gasket | Graphite |
| Stem Nut | Brass |
| Stud | ASTM A193 B8 |
| Disc | CF8/CF8M |
| Gland | SS304 |
