Cov kab ntau lawm yog siv nyob rau hauv steel qauv kev lag luam xws li kev tsim kho, txuas hniav, thiab hlau yees.
Lub luag haujlwm tseem ceeb yog laum thiab pom H-shaped steel, channel steel, I-nqaj thiab lwm cov nqaj hlau profile.
Nws ua haujlwm zoo heev rau huab hwm coj ntau lawm ntau yam.
Kev pabcuam thiab lav