Orient Abrasives Ltd. Offers Zirconia / Zircon Tundish Nozzles. Orient Abrasives Ltd. Is an ISO 9001 accredited company. Orient Abrasives Ltd. Supplies calcined and fused alumina products. Zirconia / Zircon Tundish Nozzles are manufactured in 65% to 95% zirconia. Zirconia / Zircon Tundish Nozzles are applicable for single to multiple casting applications with a teeming time of up to 40 hours. These wide ranges of wide range of tundish nozzles used for controlling the flow of steel from the tundish to the continuous casting equipment.