stainless steel seamless pipe:304/304L, 316/316L, 321, 310S, 317,347,EN1.4404, ... with competitive price. We could offer: TYPEaustenite and austenite-ferritic stainless steel pipes & tubesGRADES304/304L, 316/316L, 321, 310S, 317,347 ... , Direct-reading Spectrum Instrument, Inter-granular corrosion testing lab, Hydraulic testing machine, ect.certificatesISO 9001, Manufacture License of Special Equipment ...