1. Material: 301, 304, 304L, 310S, 316, 316L, 317, 317L, 321, 347. Duplex SS, S31500, S31803, S32750 etc. 2. Product specification: OD2-530mm x WT0.2-30 mm. 3. Executive standard: ASTMA213, ASTMA312M, ASTMA269, ASTMA511; JISG3463, JIS3446, JIS3448, JIS3459, DIN17456, DIN17458, DIN2462, GB14975, GB14976, GB13296.