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2007-3-11
catalytic cracker, reactors, cyclones and “u”actifier ducts in oil and chemical industry;...
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2007-1-17
USEING WAYS: take the hexagonal as the skeleton,welding on the large bore high temperature...
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2007-1-17
USEING WAYS: take the hexagonal as the skeleton,welding on the large bore high temperature...
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2006-12-13
USEING WAYS:
take the hexagonal as the skeleton,welding on the large bore high...
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