Established in 1987, EDL Casters is a modern enterprise which specializes in producing wheels and casters with an area of 25,000 square meters at Taizhou, Zhejiang, China, 2 hours by car from Yiwu. EDL has pioneered the "Internet of Things" intelligent management system, ensuring end-to-end control from order placement to warehousing. Our system makes your orders visible and allows for real-time supervision. Focusing on three main categories - durable general-purpose casters, specialized durable casters, and durable equipment casters - EDL offers over 40 series and more than 20,000 specifications. These products can be applied across various fields such as logistics, equipment and instruments, where short-distance and irregular movement are required. We have gained ISO9001 and ISO14001 Certificate and the service nets have been spread over each region in homeland, more than twenty countries and districts of European, American and Southeastern Asia market.

NAIDI Casters, founded in 1998, is an enterprise vertically focused on manufacturing industrial universal casters. We have developed an operation model of “Integrated Diversification + Digital Cloud Factory,” leveraging our strength in single-product manufacturing and connecting customers through a direct procurement platform. Guided by the core philosophy of “Pragmatism,” we deliver stable and highly efficient services! Adhering to the principle of “Value First, Shared Growth” and upholding the business ethos of “Durability, Simplicity, Excellence,” we continuously create and transmit value — dedicated to providing you with products and services of greater worth.

As a brand under Zhejiang EDL Casters Co., Ltd. specializing, SPU focuses on the innovative application and precise manufacturing of polyurethane materials. Relying on its independently mastered MDI casting technology, SPU achieves customized development of product hardness, wear resistance, and dynamic load capacity through molecular structure design and precise control of process parameters. It can undertake custom orders for non-standard polyurethane products such as rubber rollers, forklift-specific wheels, drive wheels, shock-absorbing and buffering modules, industrial sleeves, and heavy-duty iron-clad parts based on provided drawings, offering comprehensive solutions from standard industrial parts to complex non-standard components. SPU currently produces over 5,000 casters, specialized wheels, and custom non-standard products daily, which are widely used in forklifts, machinery, energy, automated logistics and warehousing, semiconductors, and other industries. They can be used as accessories for casters, high-speed wheels (25KM/H), AGV wheels, heavy-duty trailer wheels, electric drive wheels, robots, and other products.