Square steel ntim tshuab
Multi-industry accessory khoom siv xws li xauv.
Square steel feem ntau yog siv rau ob chav ceev xauv rau sab nraud (koj tuaj yeem nqa tus kov kom xauv lub qhov rooj sab hauv thiab sab nraud) los ntawm kev nqa nws ntawm sab nraum zoov kawg kom kaw lub qhov rooj tsav los ntawm cov square steel. Cov locks zoo tib yam tsis muaj cov hlau square.
