... A53 ASTM A106 EN10216 EN10219 BS1387-85 JIS-G3444SurfaceGalvanized,Oiled,Paint black or other requestEndPlainTechniqueERW,Hot Rolled,Cold RolledTypeWeldedApplicationStructure,Machinery,Airport ... pipe/tube,Steel strip,Hollow section pipe/tube/channel(C,U,V,H,I,figure-8 etc.),Tyre chain and so on ...