Forged steel Flanges to KS B1502, JIS B2203, KS B1503, JIS B2220, JIS B2216 having won TUV Certificte and ISO9001 FORGED STEEL FLANGES Dimension ... 6A 1-13/16”-30” CLASS 2000-20000 AWWA C207 4”-144” CLASS B-F KS B1502, JIS B2203, KS ... pipe line; easy to seal pipe line Application area: oil, chemical industry, nuclear power station, food manufacturing, construction, shipbuilding, paper making, medicine ...