They use single stageconstruction and aluminum impellors. They are field adjustable to 4 discharge positions.
使用单级结构和铝质叶片，4个出风口位置可以在现场调整。
2
In order to adapt ourselves to development of marine industry, our company has completed first-stageconstruction in 2007.
为适应船舶工业的飞速发展，不断满足顾客的需求，公司于2007年完成了新厂区一期工程建设。
3
The second stageconstruction area on the main river bed is formed by the second stage up & downstream transverse cofferdams and the longitudinal con crete cofferdam.