Specification for sealless horizontal end suction metallic centrifugal pumps for chemical process 化学工艺用无缝水平末端吸入式金属离心泵规范
2.
Iso 3661 : 1977 ; end - suction centrifugal pumps - baseplate and installation dimensions iso 3661 : 1977 ; german version en 23661 : 1993 离心式末端吸入泵.基座和安装尺寸