These are in Accordance With API 601.
They are available in the Following Categories.
• Ring joint Gaskets are available in R, RX, and BX.
• Forms and in the following material specifications:
Soft iron, Cadmium plated, and stainless steel.
• Range of sizes: R 11 UP TO R 74 / RX 20-RX 74/ BX 151 – BX 170