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T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