... , Socket Welding, Threaded, Lap Joint and Plate etc.2. Pressure Ratings: Class 150, 300, 600, 900, 1500 and 25003. Pressure ... 6, PN 10, PN16, PN25, PN40 and PN644. Pressure Ratings: JIS 5K, 10K, 16K and 20K5. Materials: Carbon steel, Stainless ...