U Bend tube
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ASTM A179 U Bend Heat Exchanger Tube
Mgbe U gbadaa (oyi na-akpụ), enwere ike ịchọ ọgwụgwọ okpomọkụ nke akụkụ na-ehulata.igwe na-emepụta nitrogen (iji chebe elu igwe anaghị agba nchara n'oge annealing).A na-achịkwa okpomọkụ site na mpaghara dum a na-agwọ okpomọkụ site na pyrometer infrared edoziri na obere ibu.
