Carbon Steel Seamless Pipe
- Arcelor Mittal S. A. Ltd-S.A.
- Dalmine S.P.A. - Italy
- ISMT Ltd - India
- JFE Steel Corp. - Japan
- Maharashtra Seamless Ltd (MSL) - India
- NSSMC - Japan
- Sumitomo Metal Corp. - Japan
- TPCO - China
- Tubos - Mexico
- United States Steel - U.S.A.
- V&M - Brazil
- Vallourec Deutschland Gmbh - Germany
- Vallourec Tubes - France
Flanges
- Bruck Gmbh - Germany
- Cameron Malaysia SDN Bhd - Malaysia
- CHW Forge Pvt. Ltd. - India
- Korea Flange Co. Ltd. - Korea
- Mega S.p.A - Italy
- Melesi - Italy
- Metalfar Prodotti Indust. S.p.A. - Italy
- Officince Nicola Galperti - Italy
- Officine Santafede Srl - Italy
- Technoforge (Valvitalia Group) - Italy
- Ulma Forgja - Spain
- Viar Meccanica Srl. - Italy
- Viraj Profiles Ltd - India
PLATES
- Arcelormittal Industeel - France
- Dillinger - Germany
- Hyundai Steel - Korea
- JFE - Japan
- Mannesman - Germany
- Nippon Steel - Japan
- Outokompu - Findland
- Posco - Korea
- Salzgitter - Germany
- Sandvik International - Sweden
- Sumitomo - Japan
- Voest Alpine - Austria
Carbon Steel Welded Pipe
- EBK - Deutschland
- EEW Korea Co. Ltd - Korea
- Hyundai Hysco - Korea
- Hyundai RB - Korea
- JFE Steel Corp. - Japan
- Jindal India Ltd - (India)
- NSSMC - Japan
- Seah Steel Corp. - Korea
- Tata Steel UK - UK
- Welspun Corp. Ltd - India
Butt Weld Pipe Fittings
- Erne Fittings GMBH - Austria
- OMR - Italy
- Piana - Italy
- Sungkwang Bend Co. LTd. - Korea
- Technoforge (Valvitalia Group) - Italy
- Tectubi Raccordi Spa - Italy
- Thai Benkan Co. LTd. - Thailand
- TK Corporation - Korea
- W. Schulz Gmbh - Germany
- Weldbend - U.S.A.
Industrial Valves
- Hawa Valves (India) Pvt Ltd - India
- Limitorque Internationl - U.K.
- Netherlocks Safety Systems BV - Holland
- Orton SRL - Italy
- Oswal Industries Ltd - India
- Pkvalve Company Ltd - Italy
- Rotork Fluid System SRL - Italy
- Viar Volvole - Italy
- Virgo Valves & Controls Ltd. - India
- Virgo Valves & Controls Ltd. - Italy
Duplex / Super Duplex / Nickel Alloy Seamless Pipe
- NSSMC - Japan
- Salzgitter Mannesmann Stainless tubes - France
- Salzgitter Mannesmann Stainless tubes - Germany
- Salzgitter Mannesmann Stainless tubes - Italy
- Sandvik Group - Sweden
- Schoeller Bleckmann - UK
- TPS - Germany
- W.Schulz Gmbh - Germany
Stainless Steel Seamless Pipe
- Kuze - Japan
- NSSMC - Japan
- Salzgitter Mannesmann Stainless tubes-France
- Salzgitter Mannesmann Stainless tubes-Germany
- Salzgitter Mannesmann Stainless tubes-Italy
- Sandvik - Sweden
- Schoeller Bleckmann - UK
- TPS - Germany
- Tubacex Tubos Inoxidables S.A.-Spain
- W.Schulz Gmbh - Germany
Duplex / Super Duplex / Nickel Alloy Welded Pipe
- H.Butting Gmbh & Co. - Germany
- Inoxtech Spa - Italy
- NSSMC - Japan
- Outokumpu - Finland
- Rivit - Italy
- Sosta Gmbh & Co. - Germany
Fasteners
- Cameron Singapore Pte Ltd - Singapore
- I.M.L Industria Meccanica - Italy
- Lone Star Fasteners - U.S.A.
- Okawa Screw Manufacturing Co. Ltd. - Japan
- Takenaka Seisakusho Co Ltd - Japan
Stainless Steel Welded Pipe
- H.Butting Gmbh & Co. - Germany
- Inoxtech Spa - Italy
- NSSMC - Japan
- Outokumpu - Finland
- Rivit - Italy
- Sandvik International - Sweden
- Sosta Gmbh & Co. - Germany
Forged Fittings
- I.M.L. Industria Meccanica Lig. Spa - Italy
- Mega S.p.A - Italy
- Officince Nicola Galperti - Italy
- Officine Santafede Srl - Italy
- Technoforge (Valvitalia Group) - Italy
- Ulma Forgja - Spain
- Viar Meccanica Srl. - Italy