The profiles are manufactured by a special extrusion process then surface hardened and given a finishing treatment.
概况生产由一个特别然后挤压工艺和表面硬化整理给予治疗。
The experiments shows that the newly made abrasive media can be used for abrasive flow finishing of extrusion dies.
实验结果表明，这种国产珩磨膏适合用于铝型材挤压模具的珩磨抛光。
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