... 6, PN 10, PN16, PN25, PN40, PN63, PN100, PN160Pressure Ratings:JIS 5K, 10K, 16K and 20K ANSI Flange Materials: Carbon steel ... Threaded, Lap Joint and Plate Flanges to ANSI, BS, DIN, JIS, UNI etc. or as the customer's requirement.The factory ... the whole quality control system which covers every process of the manufacturing-Raw material inspection, cutting, heating, gorging, heat treatment, machining, ...