Alloy 20 socket welding boss

1. Forged socket welding/weld SW NPT threaded/screwed pipe fittings 90deg / 45deg elbow tee cross cap full / half coupling swage nipple union (hex square round head) plug bushing reducing/reducer inserts boss 2. duplex stainless nickel monel inconel incoloy hastelloy nimonic 3. Size: 1/8"-4", 1/2"-24"(Weldolet) 4. Ratings: 3000, 6000, 9000 5. Standard: ASME B16.11, MSS SP-97, MSS SP-95, MSS SP-79, MSS SP-83 6. Fittings socket welding or NPT threaded, forging according ASTM