For medium and larger horsepower sizes, some manufacturers elect to offer by-pass (pumpage cooled) jacketed motor designs.

对于大中型功率（马力）的电机，一些制造商选择供旁路（泵冷却）加电机设计结构。

Packng tools, Packing cutter, Gasket cutter, SWG winding machine, bending machine, Groover, Angling machine, Double jacketed machine, Gasket cutting machine, Puncher, Calender, Braider and so on.

密封机械 ：盘根，盘根切割，垫片切割，绕机，盘环机，铣槽机，倒角机，包覆机，双翦机，点焊机，冲齿机，辊压机，盘根编织机。