TYHI, a large design and manufacture enterprise of coke oven machinery, provide customers with safe, reliable and eco-friendly equipments. TYHI provide heat recovery, top-charging and tamping coke oven machinery of more than 10 ranges of equipments. With a specialized R&D team for coking project, TYHI has the ability to take on general contracting projects of coking, CDQ and desulfurization & de-nitration.