1. Flange, forged flange, WN flange, pipe fitting 2. Material: stainless steel ,carbon steel and alloy steel 3. Size:1/2"-60" 1) Flange, forged flange, WN flange, pipe fitting2) Material: stainless steel ,carbon steel and alloy steel3) Size: 1/2" - 60"(DN15 - DN1500)