... maintain low coefficient of friction, greatly reduces the noise in the operation of, prolong the service life.SHS basic model; SHS15, SHS20 ... installation, which can be applied on the stage can't open mounting hole, the models are as follows;Standard; SHS15C, SHS20C, ... HuaJingRui guide supply company, is specialized is engaged in the automation accessories to linear guide, linear bearings, steel cage ...