1. Lub zog saum npoo yog loj, uas yog 2 txog 4 npaug ntawm qhov chaw thauj khoom ntawm cua kub cua.
2. Muaj zog siab thiab compact qauv. Vim tias tag nrho yog luv thiab ntom, nws muaj qhov zoo nyob ruaj khov thiab tsis tas yuav yauv tsum rau nruab.
3. Hom sib xyaw ua ke feem ntau siv argon arc vuam txuas rau qhov hluav taws xob cua sov lub raj xa mus rau lub flange, thiab tseem tuaj yeem siv daim ntawv ntawm lub tshuab txuas nrawm, uas yog, txhua qhov cub hluav taws xob cua sov tau txuas nrog lub qhov khi, thiab tom qab ntawd flange npog yog muab xauv nrog lub txiv ntoo. Txais yuav cov argon arc vuam nrog cov khawm hluav taws xob thiab tsis txhob xau. Cov ntsaws ruaj ruaj foob siv tshuab thev naus laus zis, thiab kev hloov ntawm ib thooj yog yooj yim heev, uas txuag tau zoo yav tom ntej cov nqi txij nkawm.
4. Xaiv cov khoom siv txawv teb chaws thiab cov khoom lag luam zoo hauv tsev, thev naus laus zis tsim tshuab, thiab kev tswjhwm zoo kom ntseeg tau tias qhov hluav taws xob ua tau zoo tshaj ntawm lub raj cua kub fais.
