... .DN: 1/2''-48'' INCH 3.Certificate: ISO,API 5L,API SPEC 5L. 4.ASTMA234,ANSIB16.9,DIN,JIS 5.Thickness:2mm-80mm ... ;elbow,reducer,cap,tee,flange etc.Standard API 5L, API 5CL,BS,JIS,DINCertificateAPI 5L, API 5CL,ISO9001-2000FOBUSD 2000-4000 per ... or normal delivery 30 days8.AUTHENTIFICATION: ISO 9001:2000 API 5L/5CT9. steel pipe: SSAW, LSAW,ERW, Seamless10 . Delivery Term: FOB ...