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This co***ny specialty production operation each kind of specification material quality seamless steel pipe, the spiral steel pipe, the hot rolling steel pipe, expand the steel pipe, the ASTM beautiful sign, the date sign, the German sign seamless tube hotly, the straight seam steel pipe, the cold draw steel pipe, the welded pipe, the galvanized pipe, the ERW seamless slit-tube, the compo pipe, the stainless steel pipe and each kind of bend, the Three Contacts, the flange, are greatly curved. Year to year s...
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