Size:2''-60'', Class 150-2500 Standard:GB150 or ASME B 31.8 Business Type: Manufacturer Certificate: ASME ISO9001 Detailed Product Description Monolithic Insulating joint 1)Material: CS,SS AS 2)Size:1/2"-60" 3)Pressure:CLS 150-25004) ISO 9001:2008, ASME Certificate and U stamp Deatiled production description Monolithic Insulating joint1, Pup material: API 5L Gr.B, X42, X46, X52, X56, X60, X65, ...