短语词组短语bulb angle bar 圆头角料;翻译;圆边角型铁料bulb flat bar 球扁钢T -bulb-bar 球缘形材bulb angle -bar 球缘角钢tee bulb bar 球缘bulb bar steel 圆边圆铁plain bulb bar 球缘扁材bulb -tee bar 丁字形球缘材 返回 bulb bar