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金属管材冷轧
释
cold rolling of tube
管材冷轧
管材毛坯在常温下进行轧制,从而获得成品管材的加工方法。是无缝管和焊接管的二次加工工艺。
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Zhenfei
Zhenfeng Pagoda
Zhenfeng Poliu tea
Zhenfeng Xian
zheng
Zheng'an white tea
Zheng'an Xian
ZhengAn Xiansheng Cungao
zhengan xifeng decoction
Zheng-Bai Canal
Zheng Banqiao
Zheng Banqiao Memorial
Zheng Biao
Zheng Bonong
Zheng Bozhang
zhengchaihu drink
Zheng Changhe
Zheng Chenggong
zheng:Chinese zither
Zheng Chonglan
Zheng Chouyu
Zheng Chuan'en
Zheng Chuanyin
Zheng Chunhua
Zheng Chunyu
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