全(quan)密封結構(gou)，無油耗，免維護，綠色環保型產品(pin)，產品(pin)性能符合 EN81-1 要求(qiu)， 每次動(dong)作后(hou)不(bu)需要人(ren)員調整開關打桿垂直位置(zhi)。

 Sealed without any oil leakage, free of maintenance. the are green productes, these buffers are produced and tested copmletely in conformity with EN81-1, It is not necessary to make any adjustment of the swicth activating rod when it is compressed.