... grooved fitting 1.size:DN100~3000mm 2.ISO9001,ISO14001 3.12 years OEM producing experience 4.color:as you require grooved ... on shipping ,mine, oil field,textile,powder plant,etc.3)Pipeline system on subway station ,railway station ,airport, seaport ... 4502Short pipe2Q235A,20,16Mn3Seal ring1NBR,EPDM4BoltnQ235A,35,1Cr18Ni9Ti5NutnQ235A,20,1Cr18Ni9Ti 3:installation figure 4:Package: 1)ZHW boxes ,non-wood ...