Fittings with material: stainless steel, carbon steel, etc. and with all kinds of types 1 ... fitting2) Size: we can also produce other specifications according to customers' requirements. Seamless Fittings 1/2-20 (DN15- ... 9,,DIN 2605,JIS ,GB/T12459,GB/T134015) Material: stainless steel (304, 304L, 316, 316L, 321, 321H, 310S, ... equipment, aviation, boiler heat exchanger, and other fields Steel Fitting