1, Products: nipple, king nipple, hose nipple 2, Seam & Seamless 3, Painted: black, varnish, antirust oil 1, Size: 1/2”-72”2, Thread: NPT, BSPT, DIN, RUSSIAN3, Thickness: SCH20-XXS4, Standard:I ASTM A234 MSS SP-75 ASME B16.9 ASME 16.28II JIS B2311 JIS B2312 JIS B2313III DIN 2605 DIN 2615 DIN 2616 DIN 26175, Material: carbon steel (seam & seamless)6, Packing: carton cases carbon steel socket