Valve patent

Water pump patent

Certificate of Honor

Valve patent

Pre-tightening sealing ball valve device

Pre-tightening sealing ball valve device

Fully welded ball valve

Fully welded ball valve

Welding ball valve

Welding ball valve

Steel pipe welded ball valve

Steel pipe welded ball valve

Fireproof welded ball valve

Fireproof welded ball valve

Durable ball valve

Durable ball valve

Novel valve stem ball valve device with multiple seals

Novel valve stem ball valve device with multiple seals

Water saving ball valve device

Water saving ball valve device

Multiple elastic seal seat ball valve

Multiple elastic seal seat ball valve

Low torque multiple elastic seal seat ball valve

Low torque multiple elastic seal seat ball valve

Metal hard seal butterfly valve

Metal hard seal butterfly valve

Three eccentric patent certificate

Three eccentric patent certificate

Seal ring patent certificate

Seal ring patent certificate

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