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Hebei Longrun pipeline Group co***ny specializes in manufacturing and selling industrial pipe fittings of various materials including carbon steel, alloy steel and stainless steel.With advanced production facilities, completely ***ecting devices , abundant technical team and our own advanced & scientific management mode,We have been a Science & Technology enterprise co***ny,our products are widely used in many fields , like electric power , petroleum , chemical industry , oil & gas transportation projects a...
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