api 5000Our ring joint gaskets are strictly manufactured as per API-6A and ASME B16.20 specification. RX Series are available in low carbon steel and 316 stainless steel. RX Series ring joint gasketsAPI Blind Flanges dimensions are desned to handle hher rated pressure. We are an API 6a flanges manufacturer. Visit now! For Domestic (for India) Email: sales3@ Phone: