Daim duab peb sab hniav ntsia hlau tseem hu ua lub voos plaub hau hniav kheej kheej npuaj ntsuas phoo ntsia hlau, lossis daim duab peb sab hniav ua tus kheej ntsia thawv ntsia hlau. Los yog daim duab peb sab hniav screws. Nws txhais tau hais tias tus Tsov tus tw ntawm tus kheej tapping ntsia hlau yog voos, thiab xov ntawm tus hniav yog voos. Nws belongs rau chav kawm tshwj xeeb ntawm tus kheej tapping screws. Peb tuaj yeem xub nkag siab txog qhov kev paub ntawm kev coj tus kheej screws screws.
Muaj nuj nqi:
Muab piv nrog cov hniav ntswj uas tsis muaj qhov tsis zoo, cov hniav voos tuaj yeem tuaj yeem txo qhov tsis kam thaum lub sijhawm ua haujlwm. Nws siv peb lub ntsiab lus coj mus rhaub cov haujlwm. Yuav muaj cov nyhuv thermal thaum lub sijhawm xauv. Tom qab txias, nws yuav tiv thaiv tus ntsia hlau txav mus los. Cov. Daim duab peb sab cov hniav txhua lub sijhawm feem ntau yog 60 degrees, siab xov zog, qis zog quab yuam, yooj yim ntau lawm, thiab 55-hniav hniav, Webster hniav. Cov xov yog muab faib rau txoj kev xauv, xa mus, thiab kaw lub zog, xws li cov xov square thiab ntaiv xov, uas feem ntau ua haujlwm kis. Qhov sib txawv ntawm daim duab peb sab thiab plaub fab yog qhov sib txawv ntawm cov voos kheej kheej. Nws tau piav qhia nyob rau hauv kev siv tshuab thiab ntsuas kev vaj huam sib luag uas cov duab peb ceg muaj kev ruaj khov dua plaub ceg kaum.