全密封結構，無油耗，免維護，綠色環保型(xing)產品，產品性能(neng)符合 EN81-1 要求， 每(mei)次動作后不需要人員調整(zheng)開關打桿垂(chui)直(zhi)位(wei)置。

 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.