Forged steel Flanges to KS B1502, JIS B2203, KS B1503, JIS B2220, JIS B2216 having won TUV Certificte and ... 2000-20000 AWWA C207 4”-144” CLASS B-F KS B1502, JIS B2203, KS B1503, JIS B2220, JIS B2216 BS /UNI / GOST ... requirements of our clients.OEM: yes Forged steel Flange to KS B1502, JIS B2203, KS B1503, JIS B2220, JIS B2216