JTC PVC pipes and fittings Yr.1967- IS 4985-1968 - Self-extinguishing. Dia.: 110-315 mm. For water sypply, sewerage disposal, electrical condutis. Etc. Manufactured using Cincinnati Mila Corn, Austria. TC Steel pipes and tubes Yr.1967 - IS 1978-1982, IS 3589-1981, IS 4270-1983, IS 1239-1990, BS 1387-1967, BS 1775-1964, ASTM A -120, ASTM A-153, ASTM A-512, DIN 2439, DIN 2440, DIN 2441, JIS G-3452-1973, ISO 65-1979 - Black and galvanised tubes with plain and screwed and socketed ends. NB: 15-400 mm. OD: 21-406.8 mm. Used for general engineering purposes, electrical wiring, water supply, sewage, etc. Manufactured using high frequency induction welding process.