Cracks may occur in the centre of the remainder of a billet during bar - bar combined extrusion if the original height or the remaining height of the billet is short.
在杆杆型复合挤压时，如果坯料原始高度不大或剩余高度较小，则可能在剩余坯料的中部出现开裂。
Cracks may occur in the centre of the remainder of a billet during bar - bar combined extrusion if the original height or the remaining height of the billet is short.
在杆杆型复合挤压时，如果坯料原始高度不大或剩余高度较小，则可能在剩余坯料的中部出现开裂。
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