Oval and Oblong?spiral wound gaskets?for boilers handholds and manholes. There is no specific standard for this style of gasket. When ordering it providing complete specifications is required. Including inside dimensions (A*B), width (b) and thickness (s) or a drawing.SWG Oval (or oblong)A*B*b*sWinding: SS316L/SS304 Filler: Graphite?/PTFENormally special shape of spiral wound gaskets need to prepare the molds first. When you purchase order, please checking with SUNWELL sales team about the condition of the molds. If there's prepared molds, it's better to save the additional charge.?
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