round concrete bar
常见例句
- In recent years, round steel bar, deformed steel bar and helical rib steel wire for prestressed concrete are new kinds of high strength prestressed reinforcement.
預應力混凝土用光圓鋼棒、異形鋼棒及螺鏇肋鋼絲就是近年來開發的高強預應力鋼筋新品種。 返回 round concrete bar