代替方钢热冲拔
hot punching and drawing of square steel
多级方钢
multilevel isolating vibration
方钢
Square
Billets
square steel
square bar
squares
Rectangular steel component
square sections
billet
quadrate steel
quadrate beam
方钢铣制叶片
blade milled from solid material
碳素结构方钢
carbon structural square steel