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.
| 国产三级黄AA级 | 在线观看欧美黄无码 | 91av免费在线观看 | 亚洲无码视频在线播放 | 亚洲国产成人无码468A片直播 | 草1024榴社区成人影院入口 | 色情乱婬一区二区三区竹菊影视 | 日韩mv欧美mv国产网站 | 69精品一区二区三区无码吞精 | 久密桃精品AV妻菠萝9 | 亚州一区二区三区成人片 | 91无码人妻精品一区 | 乱伦电影欧美色图 | 无码人妻黑人中文字幕 | 欧洲无码八A片人妻少妇网站直播 | 岳 理伦片在线播放欧美 | 精品人妻无码一区二区三区电影 | 国产成人愉拍精品久久 | 国产精品人人妻人人爽 | 国产精品久久久久久久久久免费 | 在线视频一区二区三区 | 一区二区三区无码成人无码 | 99久久人妻精品无码二区 | 国产91玩精品秘 入口 | 国产91 丝袜在线播放竹菊 | 中文字幕一区二区亚洲 | AAAAAA片毛片免费观 | 丰满人妻一区二区三区 | 成人做爰免费视频免费看 | 奶水人妻一区二区三区 | 精品秘 无码一区二区三区老师 | 777午夜福利理论电影网 | 精品爆乳一区二区三区无码AV | 国产精品在线免费观看 | 国产精偷伦视频在线观看蜜臂 | 搡老肥女老熟女老女人 | 国产欧美精品久久久一区二区三区 | 欧美激情视频一区二区三区 | 色很很一区二区三区 | 一级A片高龄老妇毛多多 |