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1. Feem ntau hais lus rau cov ntaub ntawv tsim khoom yuav tsum muaj kev txwv dav dav, kev ua phem rau kev ua phem, thiab kev kho cua sov. Cov ntaub ntawv uas nquag siv suav nrog cov hlau shrapnel hlau, ally shrapnel hlau, raws li tooj liab alloy, npib tsib xee, thiab roj hmab.
2. Cov txheej txheem tsim khoom rau shrapnel li cov dov txias thiab kub dov. Qhov kev sib tsoo txias feem ntau yog siv rau shrapnel xaim nrog txoj kab uas cov taub tsawg dua 8 hli, thiab kub dov txoj kev siv rau xaim nrog lub cheeb ntau dua 8 hli. Qee cov tawg yuav tsum tau yov muaj zog lossis tua cov pob zeb kev kho mob tom qab kev tsim khoom ntawm lub peev xwm ntawm cov tawg.
3 Thaum thauj khoom, shrapnel tuaj yeem tsim cov khoom tsis zoo ntawm kev deformation, hloov me nyuam neeg kho tshuab ua haujlwm lossis lub zog ua kom zoo rau kev ua kom lub zog deformation. Tom qab kev txwv tsis pub muaj, qhov deformation ntawm lub shrapnel ploj thiab rov mus rau nws thawj lub xeev, hloov deformation zog rau hauv kev ua haujlwm lossis lub zog ua haujlwm.
