ausbrech end duration is not controllable fastening or riveting thinner steel sheets of maurer - plaster trowels and similar tools.

• 1. Fastening thinner plaster sheets on the holders of mason's trowels or similar tools [P] . 德国专利： DE926992C . 1955-04-28

  机译： 在泥工抹子或类似工具的支架上固定较薄的石膏板

• 2. Plaster application of the trowel bent spring steel sheet, with insertable, semicircular curved toothed rack [P] . 德国专利： DE9309949U1 . 1993-08-26

  机译： 抹泥刀弯曲弹簧钢板的抹灰应用，带有可插入的半圆形弯曲齿条

• 3. Trowel has stainless steel blade attached to handle by stainless steel fastening which has chromium steel plating containing niobium or titanium in welding area [P] . 德国专利： DE202006015025U1 . 2007-02-01

  机译： wel刀的不锈钢刀片通过不锈钢紧固件固定在手柄上，该不锈钢刀片的铬合金镀层在焊接区域内包含铌或钛

• 1. Initial Comparisons of Friction Stir Spot Welding and Self Piercing Riveting of Ultra-Thin Steel Sheet [C] . Yuri Hovanski, Brigham Larsen, Blair Carlson, SAE World Congress Experience . 2018
• 2. Self-pierce Riveting and Hybrid Joining of Boron Steels in Multi-material and Multi-sheet Joints [O] . Hahn O., Meschut G., Bergau M., 2014
• 3. Interdependence of Microstructure and Second-Phase Distribution in Controlling the Formability of Sheet Steels. [R] . dillamore, i. l. hutchinson, w. b. 1972