立柱：装有法兰，重型锻钢管包围泵轴。
Shaft Column: Flanged, heavy wrought steel pipe encases the pump shaft.
根据功能要求，本电气贯穿件的技术特点是采取了陶瓷组件封焊和钢管聚砜旋锻密封两种密封方法，以及紧凑的结构方式。
According to the functional requirements, their technical characteristics consist of two ways on seal, ceramic package seal weld and tube polysulfone whirl forge seal, and the compact structure.
锻制钢管件，黑钢和镀锌。
锻制钢管件，黑钢和镀锌。
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