A709 Cov Khoom Siv Hluav Taws Xob Hlau H Beam
Cov qauv sib txawv ntawm A709 H-Shared Steel suav nrog W4 × 13 rau W40 × 392, thiab cov khoom xa tuaj yog feem ntau kub, tswj dov lossis ib txwm muaj. A709 cov qauv hlau siv tau rau cov kab teeb tseem ceeb thiab txhawb nqa cov vaj tse ntawm cov vaj tse loj thiab cov tsev nce siab hauv tsev cov qauv steel.