梁橋式起重機 　　雙梁橋式起重機承載能力強，跨度大、zhengtiwendingxinghao，pinzhongduo，danzishenzhiliangyuxiangtongqizhongliangdedanzhuliangmenshiqizhongjixiangbiyaodaxie，zaojiayejiaogao。genjuzhuliangjiegoubutong，youkefenweixiangxinglianghehengjialiangzhongxingshi。muqianyibanduocaiyongxiangxingjiegou。