Screw is made of alloy steel with long life. It is assembled by several units freely for more applied material and colorful products.
螺杆采用合金钢材料经特殊工艺制成，使用寿命长；分段式组合螺杆，适用原料广泛，产品更多样。
Screw is made of alloy steel with long life. It is assembled by several units freely for more applied material and colorful products.
螺杆采用合金钢材料经特殊工艺制成，使用寿命长；分段式组合螺杆，适用原料广泛，产品更多样。
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