... neck, blind, socket welding, threaded, lap joint and plateSizes: 1/2 to 64-inch (DN15 to 1,600mm)Meets ASTM A182, A105, ANSI ... 600, 900, 1500 and 2500PN6, PN10, PN16, PN25, PN40 and PN64JIS 5K, 10K, 16K and 20KMaterials: carbon steel, stainless steel and alloy steelPrinting: yellow ... ,please contact me: Longjunpipe04 AT gmail COM Flat Flange with Class 150, 300, 600, 900, 1500 and 2500 Pressure Ratings