原材料选用优质合金钢、碳结钢，螺栓采用国内先进多工位螺栓联合自动冷镦机加工，确保螺栓尺寸、表面光洁度等符合GB标准。螺栓产品经热处理后，需按标准进行全数（100％）硬度无损分选检测，防止产品混料及开裂，确保机械性能100%合格。
We excel at Project Management and VMI Management.
Each product will beproduced and delivered on time.
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