1. SS Welding Neck Flange 2. Size: 3/8"-160" (DN10-4000) 3. ... , 316, 304L, 316L 5. ISO9001:2000 Stainless steel Welding Neck flange Our welding neck flanges feature high strength, good toughness, and high ... available and special design are warmly welcome SS316 Stainless Steel Welding Neck Flange