"Product: steel moulds for making concrete pipes Product Material: Steel Shaping Mode: Forging Mould Brand Name: Apex-tech Steel moulds for concrete pipes are made by wear-resisting steel and stress elimination treatment completely to ensure the mould without distortion; Specification: DN: 300-3000mm; Length: 2000-3000mm; Joint: Flat joint, male & female, Socket & Spigot, steel collar joint. We have exported more than 10 batches of steel moulds to our customer in Middle east. "