The generation of pilger bell ends is obviated in the production, thus improving the rolling yield and achieving better economic benefit.
生产中没有皮尔格头的产生，因此可以提高成材率，产生较好的经济效益。
The generation of pilger bell ends is obviated in the production, thus improving the rolling yield and achieving better economic benefit.
生产中没有皮尔格头的产生，因此可以提高成材率，产生较好的经济效益。
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