... 20mm,33mm,49mm,etc 3.Factory cost price Pipe connector - Copper Pipe connector:1.Material: Copper/aluminum/iron2.Diameter: 20mm, ... 33mm,49mm,etc3.Factory cost price 1. Product Detail NamePipe connector ... of usage and applicationIt is used as adapter connector between air tubeProduction equipmentHydraulic equipment and lathePackageCarton box ...