Seamless steel pipe Wui Tung Holdings Limited specializing in import and export trade. We provide high quality and a variety of seamless steel pipe: Features: Outside diameter: According to meet customer requirements Wall thickness: According to meet customer requirements Length: 4 - 13M Steel grade: 301(1Cr17Ni17),304 Moderate Frequency (0Cr18Ni9),304 AOD (0Cr18Ni9),304L(00Cr19Ni10), 321M ode rate Freud ency (1Cr18Ni9Ti),321 AOD (1Cr18Ni9Ti), 316(0Cr17Ni12Mo2), 316L(00Cr17Ni14Mo2), 310S(0Cr25Ni20) ,317L(00Cr19Ni13Mo3) Specification: GB/T14975-2002, GB/T14976-2002 , GB13296-91, GB9948-88 , ASTM/ASME A213/SA213 , ASTM/ASME A312/SA312 , ASTM/ASME A269/SA269 , DIN 17458-85 , DIN 17456-85 , JIS G 3459 , JIS G 3463 , JIS G 3448 JIS G 3446.