尺寸公差 Tolerance:
外徑公差D Outside Diameter Tolerance |
壁厚公差S Wall thickness Tolerance |
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不高于B級 |
不低于X42級 |
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≤ 273mm |
+1.59/-0.40mm |
≤ 73.0mm |
+20.0/-12.5% |
≤ 73.0mm |
+15.0/-12.5% |
> 273mm |
+2.38/-0.79mm |
>73.0-508mm |
+15.0/-12.5% |
>73.0-508mm |
+15.0/-12.5% |
|
|
> 508mm |
+15.0/-12.5% |
> 508mm |
+17.5/-10% |