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秦皇島(dao)市雙馳(chi)機(ji)械有限(xian)公(gong)司是(shi)一家生(sheng)產(chan)(chan)閘(zha)門(men)(men)的公(gong)司，產(chan)(chan)品包括(kuo)手動(dong)(dong)、電(dian)動(dong)(dong)、氣(qi)動(dong)(dong)平(ping)板(ban)閘(zha)門(men)(men)、扇形閘(zha)門(men)(men)、對開(kai)閘(zha)門(men)(men)、裝車閘(zha)門(men)(men)等多種(zhong)閘(zha)門(men)(men)。秦皇島(dao)市雙馳(chi)機(ji)械有限(xian)公(gong)司的閘(zha)門(men)(men)型(xing)號如(ru)下圖所示(shi)： 舉(ju)例說明：秦皇島(dao)市雙馳(chi)機(ji)械有限(xian)公(gong)司生(sheng)產(chan)(chan)的電(dian)液(ye)動(dong)(dong)平(ping)板(ban)閘(zha)門(men)(men)適用(yong)于煤倉(cang)（或其(qi)它物(wu)料倉(cang)）下裝車用(yong)，屬于間斷(duan)性裝車閘(zha)門(men)(men)。結