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Technical Requirement:
1. Design and Manufacture
2. Face to Face: ANSI B16.10
3. Flange End: ANSI B16.1
4 Test: MSS-SP-71
информация о продукте
Main parts and materials
| Parts Name | Materials |
| Body、Bonnet | ASTM A126 B |
| Disc | ASTM A126 B |
| Stem | SS420 |
| Seat Ring | Brass |
