Application: Boiler, Super Heater, Heat Exchanger, Ship Builders, Automotive Industry, Power Generation, Food Industry, Paper Industry, Pharmaceutical Industry, Chemical Industry, Oil and Gas Industry.  Standard: ASTM A213, ASTM A312, ASTM A269, ASTM A778, ASTM A790, DIN 17456, DIN 17458, GB/T14976, GB/T13296, JIS G3459, JIS G3463, EN 10216-5; GOST 9940; GOST 9941 Out Diameter: 6mm~762mm (NPS:1/8″~30″)…