双金属锯条； 高速钢锯条；
与传统的高速钢锯条相比，这种锯条的韧性大大改善，而成本大幅度降低。
Incomparision to tile traditional power hacksaw blade made of high speed steel, this blade was very cheap and tough.
与传统的高速钢锯条相比，这种锯条的韧性大大改善，而成本大幅度降低。
Incomparision to tile traditional power hacksaw blade made of high speed steel, this blade was very cheap and tough.
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