欧美高清在线视频一区二区,中文字幕欧美日韩,国产亚洲欧美日韩俺去了,欧美日韩亚洲国产,在线国产日韩,综合亚洲欧美,欧美日韩亚洲国产

QA15-25 new type steel structure shot blasting machine is mainly used for shot blasting of steel structure parts. Using the high-speed rotating impeller of the shot blaster to accelerate the shot ball to the surface of the workpiece, impact and scrape the surface of the workpiece, not only can clean the sand, rust and dirt on the surface of the workpiece, but also eliminate the surface stress of the workpiece. The surface is shot blasted to improve the fatigue strength of the workpiece, increase the adhesion of the paint film when the workpiece is painted, and finally achieve the purpose of improving the surface and internal quality of the whole workpiece.