... .5 inch steel pipe 1.Size:1/2"-36" 2.W.T:2-30mm, OD:14-630mm 3.Material:20#,45#,16Mn,ST37 3.5 inch ... ,API,JIS,BS,DINRange of applicationFor conveying oil, gas,water and other fluidEndbeveled end or plain end SurfaceBlack painting.anti-corrosion ... after confirming the orderPackageAs customers' requirementPortTianjin Xingang port,China 3.5 inch steel pipe