Our tubes are mainly made with continuous casting, after which they are hammered to shape and hardened all the way throughout the piece. A high-quality product is guaranteed for every possible application, ranging from jewellery, watchmaking or industrial applications such as medical and automotive. Large diameter tubes, calibrated for threading and with specific physical properties thanks to sophisticated machining procedures accompanied by controlled thermal treatments. We provide a full range of diameters matching the ring's metrics. Platinum alloys are also available.