Nrog rau kev txhim kho ntawm kev lag luam orthopedic, kev tshawb fawb cov khoom siv cog qoob loo kuj tseem ua rau tib neeg nyiam. Raws li Yao Zhixiu cov lus qhia, tam sim no cov ntaub ntawv cog lus hlau feem ntau suav nrog stainless hlau, titanium thiab titanium alloy, cobalt puag ...
Nyeem ntxiv