九九热在线视频 I 九九热这里有精品 I 九九热这里只有 I 九九热这里只有精品6 I 九九人人 I 九九色 I 九九色视频 I 九九色影院 I 九九色综合 I 九九视频网 I 九九视频在线 I 九九视频在线观看 I 九九视频这里只有精品 I 九九五月天 I 九九香蕉视频 I 九九亚洲 I 九九在线 I 九九在线观看高清免费 I 九九在线观看免费高清版 I 九九在线精品 I 九九在线精品视频 I 九九在线免费视频 I 九九在线视频 I 九九自拍 I 九九综合 I 九九综合九九 I 九九综合网 I 九色91

  The utility model relates to a short stress universal rolling mill with high rigidity and short stress, in particular to a short stress universal rolling mill with high rigidity and which can realize rapid replacement of the whole rolling mill. The utility model relates to a high rigidity short stress universal rolling mill, which is characterized in that it is a non arch rolling mill, including a reinforced horizontal roll device, an anti rollover vertical roll device, a guide rail, a pressing screw, a column and a roll changing trolley. The whole rolling mill is fastened on the rapid roll changing trolley by a hydraulic prestressed rod to realize the overall rapid replacement of the rolling mill. The short stress universal rolling mill of the utility model is reformed on the basis of the original rolling mill, the re investment of the rolling mill is small, and the product quality and the service life of the rolling mill can be effectively improved.