| Outside diameter to meet customer requirements, wall thickness according to customer requirements and length 4 to 13 meter, steel grade 301, 304 moderate frequency, 304 AOD, 304L, 321M ode rate freud ency, 321 AOD, 316L, 310S, 317L, standerd GB, T14975 2002, T14976 2002, GB13296-91, GB9948-88, ASTM or ASME, A213, SA213, ASTM or ASME A312 or SA312, ASTM or ASME A269 or SA269, DIN 17458-85, DIN 17456-85, JIS G 3459, JIS G 3463, JIS G 3448 JIS G 3446. |