The drawing difficulty is settled by adopting small draught and multi-pass drawing process, reducing the thickness of Zn-Fe alloy and using artificial aging process actively.
通过采用小压缩率多道次拉拔工艺，减少锌-铁合金的厚度，积极采用人工时效工艺等解决了拉拔困难的问题。
In case the Tools fail to pass the inspection due to Party B's fault, Party B shall remake the Tools free of charge per drawing and specimen.
如果乙方模具制作出现工艺或者其它的问题，导致模具无法验收合格的，乙方应根据图纸和样板免费重新开模。
Air leak and dust pollution in ore drawing through long pass in underground mine threaten the underground prodution safety.
地下开采矿山高溜井卸矿过程中的漏风及粉尘污染威胁矿山井下的安全生产。
Air leak and dust pollution in ore drawing through long pass in underground mine threaten the underground prodution safety.
地下开采矿山高溜井卸矿过程中的漏风及粉尘污染威胁矿山井下的安全生产。
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