短語詞組短語cross roll piercing 斜軋穿孔the cross rolling piercing 斜軋穿孔two roll cross piercing 二輥斜軋穿孔hot cross piercing 熱軋穿孔cross piercing process 斜軋穿孔工藝two -cross-roll piercing process 二輥斜軋穿孔piercing screwdriver Cross -head 穿心起子十字 返回 cross piercing