Kev faib tawm thiab cov kev qhia tshwj xeeb ntawm Laum tus tw screws tuaj yeem muab faib ua ntau yam zuaj taub hau, heXagonal flange tus kheej tapping screws, thiab lwm yam.
p>Laum tw hlau hlau yog ib hom ntsia hlau, tsuas yog siv rau kho cov xim steel hauv cov qauv steel thiab kho cov nyias ntawv hauv cov tsev yooj yim. Nws muaj ntau cov kev siv hauv cov liaj teb ntawm cov duab kos duab, vaj tse, thiab lwm yam.
Lub ntsiab zoo ntawm drilling tus tw xaim hlau suav nrog:
1. Txuag lub sijhawm thiab txhim kho cov kev ua tau zoo: tus qauv tsim ntawm lub laum tw hlau tso cai rau kev tsim kho ncaj qha, thiab xauv cov khoom siv, txuag tau zoo.
2. Txhim kho kev ruaj khov thiab kev nyab xeeb: laum tw pom cov screws muaj zoo dua qub thiab yuav tsis yooj yim plam txawm tias tom qab siv sijhawm ntev.
3. Xav txog daim ntawv thov tho hlau uas haum rau ntau yam ntaub ntawv, xws li cov khoom lag luam txhuas, thiab tau ua tiav cov khoom siv hluav taws xob, cov hlau hluav taws xob, thiab cov kab mob siab.