... 31.8/31.3 Business Type: Manufacturer Certificate: ISO, ASME, HSE. Detailed Product Description Monolithic Insulating joint 1)Material: CS, ... 2008, ASME Certificate and U stamp Deatiled production description Monolithic Insulating joint1, Pup material: API 5L Gr.B, X42, ... X70 2, CL150,CL200,CL300,CL600,CL900,CL1500,CL2500 Introduction:Insulating joint (Isolating Joint) is the key component in Cathodic ...