ISO 9906
动力泵 - 水力性能验收试验 - 1级和2级
Rotodynamic pumps — Hydraulic performance acceptance tests — Grades 1 and 2
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Rotodynamic pumps — Hydraulic performance acceptance tests — Grades 1 and 2
Centrifugal, mixed flow and axial pumps — Code for acceptance tests — Class B
Centrifugal, mixed flow and axial pumps — Code for acceptance tests — Class C