产品安全性高，一般采用屈服强度和冲击韧性好的中碳合金钢或铬钼合金钢，对螺纹更多采用碾压螺纹代替切削螺纹，大部份产品采用全检，为保证产品螺纹不受损伤，采用特殊防护的包装及运输。
We excel at Project Management and VMI Management.
Each product will beproduced and delivered on time.
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