oval ring meaning in English

椭圆垫
椭圆环

Gasket series : expanded graphite cut gasket , spiral wound gasket , oval ring joint gasket , octagonal ring joint gasket , serrated gasket , metal jacketed gasket , ptfe envelope gasket , ptfe envelope gasket , , corrugated metal gasket , ptfe gasket , oval graphite cut gasket etc
密封垫片系列：金属缠绕垫片,金属连接垫片八角垫，椭圆垫，平垫，金属包覆垫,金属形垫,金属包覆垫片,波形垫片，石墨切割垫片，高强石墨垫片，四氟垫片，四氟夹包垫片，石棉垫片和非石棉垫片等。
Gasket series : expanded graphite cut gasket , spiral wound gasket , oval ring joint gasket , octagonal ring joint gasket , serrated gasket , metal jacketed gasket , ptfe envelope gasket , ptfe envelope gasket , , corrugated metal gasket , ptfe gasket , oval graphite cut gasket etc . sheet series : expanded flexible graphite yarns , expanded graphite rolling sheets
密封垫片系列：金属缠绕垫片,金属连接垫片八角垫，椭圆垫，平垫，金属包覆垫,金属形垫,金属包覆垫片,波形垫片，石墨切割垫片，高强石墨垫片，四氟垫片，四氟夹包垫片，石棉垫片和非石棉垫片等。