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Aluminum alloy shaft and plastic head, shaft length could be adjustable.
铝合金杆身，头部为塑料杯。杆身可伸缩。
youdao
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The alloy has lower intensity after solution treatment, but the plastic is best.
固溶后合金的强度较低，但塑性最好；
youdao
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The alloy has lower intensity after solution treatment, but the plastic is best.
固溶后合金的强度较低，但塑性最好；
youdao