Product Name: Stainless Steel Mild Steel Soft Iron Ring Joint Gasket metallic Gasket Sealing Gasket Model NO.: ST-S-RX3100 Balance: Balanced Type: API-6A Standard: Standard Performance: High Pressure Temperature: High Temperature Mechanical Seal Speed: General Speed Mechanical Seal Pressure: High Pressure Mechanical Seals Structure: Double-End Delivery Date: 15-25days Trademark: ST Transport Package: Plywood Case Specification: 1.5"-14" Origin: China HS Code: 7318220090 Product Description Kasin (JIE ERDUN)company have been approved by API .License no is 6A-1913)The metal ring joint gasketis made of metal material by forging and heat treatment and machining .Here are the feature1.Resistance to high temperature and high pressure2.Precise quality technology3.Durable and reliable sealing performance.Material: Stainless steel SS304/SS316L; 825/625/LCS(S-4)