casing with inserted joints 套接式套管
casing with transfer passages 旋涡泵泵体 ; 侧流道泵壳
casing with small diameter 小直径套管
casing with fiber windings 纤维缠绕壳体
casing with i erted joints 套接式套管
casing with single suctionbox 单进气式气缸
casing with double suctionbox 双进气式气缸
spiral casing with stay ring 带座环的蜗壳
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