... ,33mm,49mm,etc 3.Factory cost price Cast iron pipe connectors Cast iron pipe connectors:1.Material: Copper/aluminum/iron2.Diameter: 20mm,33mm,49mm ... ,etc3.Factory cost price 1. Product Detail Name Cast iron pipe connectors ModelZY-AJBrandZHIYONGMaterialCopper,aluminum,iron material(electroplate on surface)Technique dateDiameter ... and Certification 6. About us 7. Contact us Cast iron pipe connectors