“slewing ring”簡單造句，slewing ring造句子

Komatsu rotary reducer, slewing ring, rotary motor, engine four supporting etc pure accessories.

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.