娇妻借朋友高h繁交h,公交车伦流澡到高潮hnp,六月婷婷网视频在线观看,天堂√最新版中文在线

Shear studs

Scientific name stud and welding stud

Stud use: apply on surfaces of girder, through welding of steel beam and steel plate.
Stud basic specifications and special specifications: ￠13, ￠16, ￠19, ￠22, ￠25
Stud commonly used accessories: porcelain ring (Ring size is matched with the stud attachment).
Application: It can be applied surfaces of girder, through welding of steel beam and steel plate.