Single-Row slewing ring, featured in quadruple-loading-points, an advanced structre in the world, is suitable to be assemblied to the mechanical part of varilvs cranes, excavators, piledrivers, scalling-ladder of fire trucks and under groud engines.

• 单排球式回转支承，采用国际先进的四点接触球式结构，与各类起重机、挖掘机、打桩机、消防云梯车、地铁机车等机械设备配套。