In connection with that there were not suitable operation tools for diameter D325 mm & above steel pipe internal surface treatment at the present in jobsite, and pipe internal surface treatment quality is not able to meet the anti- corrosion requirement, the writer developed automatic rotating sandblaster for steel pipe internal surface.
针对目前施工现场D32 5mm以上钢管内表面的处理无合适的施工机具 ,钢管内表面处理质量达不到防腐要求这一问题 ,研制了钢质管道内表面自动旋转喷砂枪。
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