https://www.ametekiron.com/pipeline-repair-products/pipe-repair-coupling/gear-ring-type-multi-function-pipe-coupling.html https://www.ametekiron.com/uploads/202129331/gear-ring-type-multi-function-pipe-coupling06301087823.jpg Gear Ring Type Multi Function Pipe Coupling 1.Body:Stainless Steel 304 2.Gasket: EPDM or NBR 3.Bolts & Nuts: Stainless Steel 304 https://www.ametekiron.com/Content/upload/video/202129331/video202103110913247237340.mp4 2021-03-10T15:35:46+08:00 yes no