97国产婷婷综合视_在线视频最新日韩精品_水蜜桃精品综合视频在线_岛国AV在线电影_无遮挡非常色的视频免费_麻豆亚洲乱码一二三四_欧美成人看片一区二三区_骚动漫十八禁在线观看_日本韩国午夜黄色视频资源_原来是电影神马琪琪_一区二区福利视频网站_日韩特一级毛片在线观看

Features:

l  ZHM automatic submerged arc welding production line is the new product developed by our company in recent years, which completes the submerging of lamp pole at one time;

l  It adopts submerged arc welding, which is featured by quick welding speed (2.5m/min), free of pollution and radiation, has smooth surface, and high penetration of direct welding, easy operation. The price is lower than the one of gas welder, so it becomes the preferred product of the enterprise manufacturing lamp poles.

Technical parameters