Steel pretreatment equipment is used for the pretreatment of various types of plates and profiles, thereby improving the quality and added value of steel produced by steel mills. In marine engineering projects such as the construction of ships and drilling platforms, the steel size is even more demanding. This also poses a considerable challenge to various surface treatments, because a large number of steel plates and special profiles need Pre-assembly activities such as high-quality and efficient cleaning, cutting, welding and painting before assembly. Surface treatment as a program is completed on the pretreatment line, which is a process that combines shot blasting, primer coating and drying. After this process, the steel plates and profiles are thoroughly blast cleaned, and at the same time, a temporary anti-corrosion coating can be sprayed. Of course, in addition to external conveying equipment, the pretreatment line also includes a preheating furnace, a continuous-through shot blasting machine, a paint booth, and a mobile grate with a drying tunnel. In steel, the feeding area provides a cross conveyor system, which can allow uninterrupted loading and unloading of materials and effectively avoid material collision damage.
| 亚洲精品网站3D动漫之医院 | 奶水少妇被狂躁c到高潮喷水麻豆 | 毛色毛片免费观看视频 | 东北一级妇女毛片视频高清观看 | 人人要人人澡人人爽人人dvd | 91成人一区二区 | 国产少妇性乱高潮国产传媒 | 午夜成人理论片A片三区黑寡妇 | A片试看120分钟日本视频 | 精品Julia无码人妻在线 | 亚洲AV成人中文无码专区久久 | 亚洲一区二区三区无码黑毛 | 国产99视频精品免视看9的功能 | 欧美一交一乱一交免费看 | 人妻熟妇久久久久久XXX | 人妻日韩精品中文字幕 | 人妻久久精品一区二区三蜜桃 | 国产精品久久久久久久久久不卡小说 | 国产又大又黑又爽AV | 91久久精品人妻一区二区三区蜜桃 | 激情小说 激情图片 | 日本私人一二三四区色欲 | 精品人妻互换一区二区三区免费 | 国产成人免费在线播放 | 3D动漫精品啪啪一区二区观看 | 无码熟妇人妻AV在线影片 | 四川BBB搡BBB搡多 | 欧美熟妇无码一区二区 | 国产成人无码精品久久久性色 | 91一区二区三区在线观看 | 色婷婷AV一本二本三本浪潮 | 7777色情肉黄我A片免费看蜜臀 | 97人妻人人揉人人躁人人免费 | 精品无码视频在线免费观看 | 精品人妻一区二区三区在线浪潮 | 性猛交╳XXX乱大交 爽9毛片国产精品一区 | av黄色一区二区三区入口 | 四川丰满少妇被弄到高潮 | 国产精品久久久久无码AV色戒 | 无码免费一区二区三区邵氏 |