Category B Fittings
Flanges
| Flanges | Shanxi Guanjiaying Forging Co., Ltd. |
| Flanges | Shanxi Guanli Flange Ltd |
| Flanges | Viar S.p.A. |
| Flanges | Wuxi Huaan Flanges Co. Ltd |
| Flanges B16.47 | Shinwoo Metal Co Ltd |
| Flanges B16.47 up to 36″ | Pro-Flange Limited |
| Flanges B16.5 | Sudhir Forgings |
| Flanges B16.5 & B16.34 up to 42″ dia | Officine Nicola Galperti and Figlio Spa |
| Flanges B16.5 & B16.47 up to 16″ dia | Uma Shanker Khandelwal and Co. |
| Flanges B16.5 & B16.47 up to 48″ dia | Echjay Industries Private Ltd. |
| Flanges B16.5 & B16.47 up to 60″ dia | General Flange and Forge Corporation |
| Flanges B16.5 & B16.47 up to 60″ dia | Weldbend Corporation |
| Flanges B16.5 up to 16″ dia | Munish Forge Private Limited |
| Flanges B16.5 up to 24″ dia | Flowline Division |
| Flanges B16.5 up to 24″ dia | Herticant Nv |
| Flanges B16.5 up to 24″ dia | Officine Di Cortabbio Srl |
| Flanges B16.5 up to 24″ dia | Precision Forgings Factory |
| Flanges B16.5 up to 4″ dia | Welding Outlet Incorporated |
| Flanges B16.5, B16.24 Up to 11″ dia | Lee Brass Company |
| Flanges B16.5, B16.36 & B16.47 up to 24″ dia | Western Texas Forge and Flange |
| Flanges B16.5, B16.36 & B16.47 up to 48″ dia | Friulana Flange |
| Flanges B16.5, B16.36 & B16.47 up to 48″ dia | Futawa Flange Works Co. Ltd. |
| Flanges B16.5, B16.36 & B16.47 up to 60″ dia | Gibson Products L.P. |
| Flanges B16.5, B16.47 | Britex Engineering Works |
| Flanges B16.5, B16.47 & B16.36 up to 60″ dia | Ulma-Forja, S.Coop |
| Flanges B16.5, B16.47 & B16.36 up to 36″ dia | Fivebros Forgings Pvt. Ltd. |
| Flanges B16.5, B16.47 & B16.36 up to 60″ dia | Eff Euro Flansch Fitting |
| Flanges B16.5, B16.47 & B16.36 up to 60″ dia | Korea Flange Co. |
| Flanges B16.5, B16.36 & B16.47 up to 72″ dia | Trilad Flanges and Fittings Inc. |
| Flanges B16.5, B16.47 & DIN 17440 up to 60″ dia | Hilton Forge |
| Flanges B16.5, B16.47, B16.28 up to 60″ dia | M. Geldbach (Shanxi) Flange and Fitting Co. Ltd. |
| Flanges B16.5, B16.47, B16.36, B16.48 Up to 60″ dia | Felix Technology Co Ltd |
| Flanges B16.5, B16.47, B16.36, BS & DIN up to 36″ | Haitima Corporation |
| Flanges B16.5, B16.47A, DIN, EN & BS up to 60″ dia | Luda (Yk) Industrial Co., Ltd. |
| Flanges B16.5, B16.47up to 48″ dia | Rollwell Forge Ltd. |
| Flanges DIN 2633 | Flanschenwerk Bebitz Gmbh |
| Flanges up to 120mm dia | Voss Fluid Gmbh and Co. Kg. |
| Flanges up to 4″ dia | Viega Propress Pipe Systems |
| Flanges up to 60″ dia | Officine Santafede Srl |
| Flanges up to 60″ dia | San Eng Steel Forging Co. Ltd. |
| Flanges used in Industrial Refrigeration | H.A. Phillips and Co. |
| Forged Flanges up to 54″ | Sanghvi Forging & Eng. Ltd. |
| Orifice flanges up to 60″ dia | Tercom s.r.l. |