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Select :
??:? ??? / ?? ?? / ?? ?? / ??? ???? ??? ??? ???? A21H
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| ?? | DN | do | d | Do | M | d1 | D1 | L | L1 | ≈H |
| A21Y-16C A21H-25C A21H-40C A21W-16/25/40P | 15 | 12 | 15 | 20 | M27×1.5 | G1/2" | 30 | 35 | 76 | 66 |
| 20 | 16 | 20 | 25 | M33×1.5 | G3/4" | 35 | 40 | 87 | 68 | |
| 25 | 18 | 25 | 31 | M39×1.5 | G1" | 40 | 50 | 100 | 105 | |
| A21Y-64C/P A21Y-100C/P | 15 | 10 | 15 | 25 | M36×2 | G1" | 44 | 50 | 100 | 66 |
| 20 | 10 | 20 | 31 | M36×2 | G1" | 44 | 50 | 100 | 68 | |
| 25 | 12 | 25 | 31 | M36×2 | G1" | 44 | 50 | 100 | 105 | |
| A21W-160C/P | 15 | 8 | 20 | / | M36×2 | G1" | 44 | 50 | 100 | 261 |
| 20 | 8 | 25 | / | M36×2 | G1" | 44 | 50 | 100 | 261 | |
| 25 | 8 | 28 | / | M36×2 | G1" | 44 | 50 | 100 | 285 |
?? ??
1.?? ??：GB/T 12243-2021
2.?? ??：GB/T12221-2005
3.??? ??：GB/T9113.1-2000
4.?? ??：GB/T13927-2022
?? ?? ???
| ?? | ?? | A21H-C/A21F?? | A21W-P/A21F-P?? | A21Y-R?? |
| 1 | ?? | 20 | 304 | 316 |
| 2 | ?? ?? | 35 | 20Cr13 | 304 |
| 3 | ?? ??? | 35 | 304 | 316 |
| 4 | ?? | 20Cr13 | 304 | 316 |
| 5 | ?? ? | 20Cr13/2Cr13+PTFE | 304/304+PTFE | 316 |
| 6 | ??? ?? | 20Cr13 | 304 | 316 |
| 7 | ??? | 50CrVA | 50CrVA?? ?? ???? | 50CrVA?? ?? ???? |
| 8 | ?? ?? | Q235-A | 20Cr13 | 304 |
| 9 | ??? ??? ?? | 20Cr13 | 304 | 316 |
| 10 | ?? ?? | Q235-A | 20Cr13 | 316 |
| 11 | ??? | "Y"? ???????,"H"? ????D507;,"W"?? ?? ????. | ||
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