... 11500 kg Electric hydraulic door Features : It is local gas heating ,but the ihternal dual-use ... . Hydraulic pressure to open the door to a child at the same time by the 2 button ... the recommendation os not blocking ,quickly;the second is the recommendation does not guarantee the sticker ,the ... from heating oil gas heating . Local skin is aluminosilicate fiber as insulation layer ,insrlation ,and rncrease ...