... flange,ansi flange,tube flange for pipe joint 2.1/2'' to 60'' 3.high quality 4.T/T,L/C 5 ... .API,CE,ISO flange steel pipe flange,ansi flange,tube flange for pipe joint ... , gas, metallurgy, shipbuilding, construction, water and nuclear power etc.”8.Quality:high lever9. The third party inspection: BV, SGS, LOIYD, TUV ...