Kev Tswj Xyuas Zoo:Ua ntej txhua qhov kev xa khoom, peb yuav ua raws li kev sim thiab muab tag nrho cov ntaub ntawv zoo rau cov iav no:
1. Dimension daim ntawv qhia: 5pcs tag nrho qhov ntev ntsuas thiab cov ntaub ntawv sau tseg
2. Cov ntaub ntawv pov thawj: Cov ntaub ntawv raw khoom thiab thawj Spectrochemical Analysis
3. Heat Treat Report: Hardness result and Microstructure testing result
4. Daim ntawv qhia tseeb: Cov iav no tau ua ob qho kev hloov kho profile thiab kev hloov pauv txhuas, K daim ntawv qhia qhov tseeb yuav raug muab los cuam tshuam qhov zoo.