... steel pipe:304/304L, 316/316L, 321, 310S,EN1.4404, EN 1.4301, ect. We could offer: TYPEaustenite and austenite-ferritic stainless steel ... preparation machines, ect.Testing machinesUltrasonic testing machine, Eddy current testing machine, Mechanics test, Direct-reading Spectrum Instrument ... Inter-granular corrosion testing lab, Hydraulic testing machine, ect.certificatesISO 9001, Manufacture License of ...