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Xizhimen,Beijing,Beijing,China China
Material of non-magnetic drill collars are made from chrome magnese,low carbon austenific alloy obtained by co
Super-high-pressure steel pipes are key parts in petrochemical industry, such as in pipe reactor, pipes heat e
Mandrel plays a key part in the continuous mill for seamless tube. To meet the growing demand in the market, o
連絡先担当者 Mr. Lee Elven
住所 Xizhimen, Beijing, Beijing
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