A: When you want to buy Pipe Bend, elbows, Reducer, Cap, Flange etc pipe fittings, you will advise to supply below information, Including: Application, Standard, Radius, Length, Wall thickness, Material, etc. That is to say, you will need to provide your inquiry list, sketch or drawing to me. We will make whole project to you according to your requirement. And naturally according to your requirement, we will provide good quality products for you.