... On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etc. Pressure Ratings: Class 150, 300, 600, 900, 1500, ... Ratings: JIS 5K, 10K, 16K and 20K Materials: Carbon steel, Stainless steel and Alloy steel etc. Standards: ANSI, BS, DIN, UNI, JIS ... , KS, DIN, BS & EN standards with material of Carbon Steel, Stainless Steel & Alloyed Steel. We produce seamless fittings from 1/2" to 24 ...