免费在线-99在线视频观看-欧美色图网站-国产女主播在线观看-一本到-色屁屁草草影院ccyycom-五月激情视频-亚洲天堂2015-天天色天天射天天干-国产三级伦理片-亚洲欧美强伦一区二区-一级黄色性片-hitomi超乳田中瞳在线播放-日本高清视频在线-国产精品日韩一区二区

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.