The results showed that central porosity and ingot shape segregate were the major causes of the cracking.
压圈原材料中心疏松及锭型偏析是导致裂纹形成的主要原因。
At that time the cast ingot shape is a saddle, two arcs, the middle waist, and the gold and silver collar is very similar in shape.
当时所铸元宝形呈马鞍，两端圆弧，中间束腰，在形制上与南宋和金的银铤十分相近。
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