Hlau hlua tub ntxhais siv txoj hlua

Khoom piav qhia:

Cov hlua hlau thauj khoom tuaj yeem tsim thiab tsim khoom raws li GB, MT, JIS ntawm Nyij Pooj, ISO, DIN ntawm Lub Tebchaws Yelemees, BS ntawm Askiv, AS ntawm Australia, SABS ntawm South Africa, RMA ntawm Asmeskas thiab MASHA ntawm Tuam Tshoj. Peb tseem tuaj yeem tsim thiab tsim khoom raws li qhov xav tau tiag tiag ntawm cov neeg siv khoom.

1. Cov hlua hlau siv txoj hlua khi muaj lub zog siab thiab ua tau zoo heev, tshwj xeeb tshaj yog tsim nyog rau kev mus deb, muaj peev xwm loj, thauj khoom siab, siv cov khoom siv nrawm nrawm.
2. Cov khoom muaj qis elongation thiab luv nro nrug;
3. Kev cuam tshuam zoo tiv taus thiab yoog raws.
4. Cov roj hmab ntawm cov hlua hlau siv txoj hlua khi muaj qib siab ua haujlwm nrog cov hlua hlau hlau, uas ua rau nws ua haujlwm tau zoo thiab ua haujlwm ntev.