Marine steel include bulb steel, angle bar, H shape steel, channel steel, flat-bulb steel, round steel, half-round bar steel, square steel and steel pipe and so on should be in accordance with relative regulation, and the negative size and thickness should be in accordance with national ship regulation, national relative standard and the standard of metallurgy field.

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bulb bar：球緣扁鋼

bulb angle-bar 球緣角鋼 | bulb bar 球緣扁鋼 | bulb beam 球緣材梁

bulb bar：球扁鋼

扁鋼 flat bar | 球扁鋼 bulb bar | 工字鋼 I-bar

bulb bar：球緣扁材

bulb apparatus || 鉀堿球管 | bulb bar || 球緣扁材 | bulb beam || 球頭工字鋼梁

tee bulb bar：球緣T形鋼

tee bend T形接頭 | tee bulb bar 球緣T形鋼 | tee bulb 球緣T字鋼

bulb bar steel：圓邊圓鐵

"built-up wheel","組成輪" | "bulb bar steel","圓邊圓鐵" | "bulb harvester","球根收獲機"