Indian oil and gas refineries use extensive flanged piping, valves, vessels, heat exchangers, and process equipment. B7 All Thread Studs can be used for suitable flange assemblies when their dimensions and material specifications match the application. The first step is identifying the flange requirements. Procurement teams should verify stud diameter, length, thread specification,... https://bettercastings.com/products/b7-all-thread-studs/