Yuav ua li cas qib ntawm cov hlau siv hauv H-Beach?
Steel h-pile beams and steel wide flange beams come in eight ASTM standards, including A36, A572-Grade 50, A588, A690, A709, A913-Grade 50, A913-Grade 65, and A992. ASTM A36 feem ntau yog siv rau cov qauv hlau qauv hlau.