Material: low carbon steel, carbon steel, stainless steel, bearing steel, alloy steel, free cutting steel, copper and aluminum.
产品材料：低碳钢、中碳钢、不锈钢、轴承钢、合金钢、易切削钢、铜、铝等。
Material: low carbon steel, carbon steel, stainless steel, bearing steel, alloy steel, free cutting steel, copper and aluminum.
产品材料：低碳钢、中碳钢、不锈钢、轴承钢、合金钢、易切削钢、铜、铝等。
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