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公制和英制管子公稱直徑（DN）對(duì)照表
20#精密管規(guī)格\45#精密管現(xiàn)貨\精密管價(jià)格\GCr15軸承用精密管\16Mn合金精密管\精密異型管\六角管\八角管\橢圓形\三角管\精密異型管價(jià)格\精密管廠 | |||
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公制，mm |
英制，in |
公制，mm |
英制，in |
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6 |
1/8 |
250 |
10 |
|
8 |
1/4 |
300 |
12 |
|
10 |
3/8 |
350 |
14 |
|
15 |
1/2 |
400 |
16 |
|
20 |
3/4 |
500 |
20 |
|
25 |
1 |
600 |
24 |
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(32) |
1 1/4 |
700 |
28 |
|
40 |
1 1/2 |
800 |
32 |
|
50 |
2 |
900 |
36 |
|
(65) |
2 1/2 |
1000 |
40 |
|
80 |
3 |
1100 |
44 |
|
(90) |
3 1/2 |
1200 |
48 |
|
100 |
4 |
1400 |
56 |
|
(125) |
5 |
1500 |
60 |
|
150 |
6 |
1600 |
64 |
|
(175) |
7 |
1800 |
72 |
|
200 |
8 |
2000 |
80 |
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(225) |
9 |
2200 |
88 |