主要是为了锉削铝材，铝合金，及其他非有色金属上。
Aluminium files are primarily for filing aluminium, aluminium alloy and may be used on other non-ferrous metals.
当锉身报废或需要换其他形式的锉身时，只要松开压板，即可更换重新使用。
The file body can be replaced and reused as long as the clamping board is loosened when the file body is broken or needs to be replaced in other patterns.
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