Packaging for graphite -, copying - or. Colored leads or ball pen fuel lungs.

• 1. Flexible joint balls with lead -, sand - or other fuel lungs. [P] . 德国专利： DE6800704U . 1969-02-13

  机译： 带有铅，沙或其他燃料肺的柔性关节球。

• 2. GRAPHITE LEAD OR GRAPHITE CHALK OR GRAPHITE BLOCK, PENCIL WITH GRAPHITE LEAD, AND METHOD FOR PRODUCING A GRAPHITE LEAD OR GRAPHITE CHALK OR GRAPHITE BLOCK [P] . US2021292589A1 . 2021-09-23

  机译： 石墨铅或石墨粉笔或石墨块，具有石墨铅的铅笔，以及制造石墨铅或石墨粉笔或石墨块的方法

• 3. GRAPHITE LEAD OR GRAPHITE CHALK OR GRAPHITE BLOCK, PENCIL WITH GRAPHITE LEAD AND METHOD FOR PRODUCING GRAPHITE LEAD OR GRAPHITE CHALK OR GRAPHITE BLOCK [P] . EP3885154A1 . 2021-09-29

  机译： 石墨铅或石墨粉笔或石墨块，铅笔具有石墨铅及生产石墨铅或石墨粉笔或石墨块的方法

• 1. LONG TERM AGING EFFECTS ON THE RELIABILITY OF LEAD FREE SOLDER JOINTS IN BALL GRID ARRAY PACKAGES WITH VARIOUS PITCH SIZES AND BALL ALIGNMENTS [C] . Cong Zhao, Chaobo Shen, Zhou Hai, SMTA international conference . 2015
• 2. Investigation and analysis on the solder ball shear strength of plastic ball grid array, chip scale, and flip chip packages with eutectic lead-tin and lead-free solders. [D] . Huang, Xingjia. 2003
• 3. Ball-Milled Recycled Lead-Graphite Pencils as Highly Stretchable and Low-Cost Thermal-Interface Materials [O] . Chun-An Liao, Yee-Kwan Kwan, Tien-Chan Chang, 2018
• 4. Disassembly and sampling of graphite ball fuel elements [O] . Erfurth H., Stockschläder F., Ullrich M. 1965