 8413604001 
农业用螺杆泵
Screw pumps for agricultural use (rotary positive displacement pumps) |
8413604010
螺杆多重密封泵
Screw multiple-sealed pumps (rotary positive displacement pumps for non-agricultural use) |
8413604090
其他非农业用螺杆泵
Other screw pumps for non-agricultural use (excluding rotary positive displacement pumps and highly-sealed pumps) |
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