... 莱德洛伊易切削钢 雷得含铅钢 含铅钢 ledloy 低含钢率 Low Steel Proportion 含铅低磷钢 Phosphorus Steel ; pho horus steel ...
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The steel wire was broken heavily and the tenacity of steel wire was worse with the general drawing process when manufacturing steel wire of high quality, qualified products proportion is low.
在生产高性能钢丝时，采用常规拉拔工艺时断丝严重，产品韧性较差，从而严重地制约着产品的合格率。
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