E.R.W., seamless, boiler, hydraulic and stay tubes. Size : ¼” (6mm) nb to (1200mm) 48” nb. Materials: M.S., galvd., carbon steel to astm – 106 gr. A & b, a 53, s.S. Aisi 304, 316, 304l, 316l, 321, a333, a335. Specification: Is-1236 (part-1) / 1979, bs-1387, api-5l, bs-3059, is-1978, 1161 gr. Yst, is-4270, is-4270, is-3589 and any other specification
