1/2 3/4 1-inch Internal Thread Retro Classic Cast Iron Flange DN15/DN20/DN25 Ground/Wall Flange Fittings 1/2 3/4 1-inch Internal Thread Retro Classic Cast Iron Flange DN15/DN20/DN25 Ground/Wall Flange Fittings: DIY Industrial Air Duct Shelf Flange Base This product is made of high-quality materials, is not easy to rust, and has a long service life. The product is finely crafted with clear threads. The product base has 3 mounting holes for a more stable installation. This product is suitable for connecting various pipes, such as water pipes, faucets, etc. Applications: DIY uses such as wall decoration, furniture legs, bookshelves, wall mounts, etc. Specifications: Product Name: DN15/DN20/DN25 Classic Flange Material: Cast Iron Color: Black Connection Method: Threaded Connection Size: 1/2 inch, 3/4 inch, 1 inch internal thread Type: Axial type, three-hole bolt Product Uses: Wall decoration, flowers, lamps, shelves, hangers, industrial supplies, etc. Package Includes: 8 decorative flanges Product Features - Cast iron is mainly composed of iron, carbon, and silicon alloys, featuring high strength, good toughness, strong plasticity, and machinability. - Original color casting, frosted surface, rust-proof treatment, thread adjustment, and molded base. - Can be used to make bookshelves, clothes racks, ornaments, retro lamps, and other handicrafts. Please Note: Dimensions are measured manually; please allow for slight errors. The colors in the photo may differ slightly from the actual product. This is due to differences in color display between different monitors.