1. Kev faib tawm raws li kev tsav tsheb siv:
1. Pneumatic socket (tseem hu ua pneumatic socket) 2. Phau ntawv lub qhov (socket) 3. Lub qhov (socket) hluav taws xob: lub qhov (socket) nrog lub qhov (socket) uas muaj lub qhov (socket) uas yog lub zog tsav.
Thib ob, raws li kev faib cov khoom siv
1. Chrome-Molybdenum Steel yog ib qho alloy ntawm chromium (Cr), molybdenum (Mo), hlau (Fe), thiab carbon (C). Nws muaj kev ua haujlwm kub kub zoo, zoo nkauj tom qab ua tiav, thiab tuaj yeem ua kom quenched. Nws muaj kev nqus tau zoo, yog li nws feem ntau siv hauv kev lag luam los tsim cov cuab yeej pneumatic thiab cov cuab yeej loj.
2. Chrome-Vanadium Steel, Chrome-Vanadium Steel yog cov cuab yeej hlau alloy nrog chromium-vanadium alloying ntsiab lus, feem ntau yog siv hauv cov cuab yeej tes.
3. 45 # carbon steel, uas yog No. 45 steel, muaj cov ntsiab lus carbon ntawm li 0.45 feem pua. Vim nws txoj kev ua tau zoo thiab kev ua haujlwm ntau txoj kev siv tshuab, nws tau dhau los ua cov khoom siv feem ntau siv hauv cov hlau. Ntawm cov ntaub ntawv saum toj no, Cr-Mo (chromium molybdenum steel) cov khoom yog cov khoom siv ntawm lub tes tsho.
