... ,Anti-oxidation,anti-corrosion,etc.so the ductile iron pipe fittings are widely applied to such compressive pipes as ... pipeline etc2. Product standards:All types of ductile iron pipe fittings produced by us according to ISO2531 BSEN545 EN598 ... , GRP and others.Pipelines:Onshore, offshore, transmission, distribution, water/waste water, plant piping, refinery, chemical plants, steel mills, power plants ...