- Extruded three bronze double knife edge, soldered continuously on.
- In the last Lam's fight with Yuen Biao demonstrates his expert skill in fighting with a fan and double knives.
- The net friend “the double knife” said: “the people often parsimoniously give others a praise.
- double knife noodle pressing machine
- Double knife section reciprocating cutter
- He is working double tides to finish his essay.