rolling of plug bolt. these header plugs used for air cooled heat exchangers in refineries. header plugs and a gasket are situated opposite each tube, allowing for individual tube examination and cleaning.
rolling of plug bolt. these header plugs used for air cooled heat exchangers in refineries. header plugs and a gasket are situated opposite each tube, allowing for individual tube examination and cleaning.
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1yFirst step for production of these plugs is forging