Impeller has a single suction and double suction two suction fluid ways.
叶轮有双吸和单吸两种吸液方法。
Double screw pump is a kind of double suction not airtight double screw pump.
双螺杆泵为一种双吸式非密闭的双螺杆泵。
Single stage, double suction pumps designed for a wide range of industrial, municipal, and Marine services.
单级双吸泵广泛适用于工业，民用和海事服务。
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