... U stamp Deatiled production description Monolithic Insulating joint1, Pup material: API 5L Gr.B, X42, X46, X52, X56, X60, X65, X70 ... gas, LNG, LPG, etc.Ø Size: 1” to 60”Ø Matching pipeline: API 5L Gr. B, X42, X52, X60, X65, X70, etc.Ø Pressure ...