Yitong Supply Chain is a comprehensive service provider with international logistics as its core business. Since its establishment in 2004, the company has been consistently dedicated to logistics support for global international trade. With Yitong International Supply Chain Management (Suzhou) Co., Ltd. and Dalian Yitong International Logistics Co., Ltd. as its dual core, the company strategically positions itself in the Yangtze River Delta and the Bohai Rim economic zones respectively. Leveraging superior port advantages, it has set up wholly-owned subsidiaries and strategic cooperation agents in multiple countries, building a seamless global service network connecting domestic and international operations. **Booking and North American Route Advantages** The company has maintained years of good cooperation with COSCO Shipping and Maersk, holding Group A qualifications on multiple routes, enabling it to provide customers with advantageous freight booking services across all routes. It holds FMC and NVOCC qualifications and has signed a North American route service contract with COSCO Shipping, which specifically covers special container transportation for North America, allowing for precise quotations at any time with zero delay. **Oversized Road Transport Advantages** The company has deep expertise in oversized cargo road transport to Russia, Central Asia, Mongolia, and Pakistan, with extensive cross-border transport experience in over-dimensional, overweight, irregular equipment, and project cargo. It operates self-owned warehouses and offices at the Manzhouli and Horgos ports, providing one-stop services including port warehousing, customs declaration, transit customs, and clearance. To address the characteristics of oversized cargo, the company offers diversified transport solutions such as TIR direct shipping, cross-border transshipment, and multi-axle hydraulic platform trailers, and can design customized services including route survey, temporary reinforcement, and road-bridge coordination based on cargo dimensions. The team is adept at handling complex approvals and border coordination for various oversized transport, ensuring safe and efficient delivery to destinations in Central Asia, West Asia, and South Asia. **Supporting Service Capabilities** The company has long-term cooperative warehouses in Shanghai, Tianjin, and Dalian ports, offering storage, container loading, short-haul transfer, and distribution services for general cargo and equipment. Its self-operated port service team can perform detailed manual services on-site, including heat shrink and wooden packaging, lashing and bracing, lining, and marking, fully meeting customers' operational needs at ports. Adhering to the philosophy of "Professional, Efficient, Reliable," Yitong Supply Chain is committed to becoming the most trustworthy logistics partner for customers exploring global markets.

Our company is a leading source manufacturer specializing in the R&D, production, customization, and after-sales service of mechanical seals. Our main products include a full range of mechanical seals for pumps, reactors, oilfields, and chemical applications, widely used in industries such as petroleum, chemical, wastewater treatment, power, metallurgy, and pharmaceuticals. These seals are ideal replacements for imported seals, offering high compatibility, stability, and cost-effective sealing solutions for domestic and international clients. We have established a full-cycle, one-stop service system covering pre-sales, in-sales, and after-sales. During pre-sales, our professional engineers provide free one-on-one services including site condition survey, parameter selection, old parts mapping, and non-standard design, ensuring precise adaptation to complex working conditions such as high temperature, high pressure, and strong corrosion, thereby preventing equipment leakage and selection errors from the start. During sales, we support bulk procurement of standard products, custom non-standard seals and special materials, with full traceability of the production process and transparent progress. We are also well-versed in foreign trade terms such as FOB and CIF, meeting procurement needs for domestic engineering projects and overseas bulk exports, delivering efficient and stable supply. For after-sales, we have a rapid response mechanism offering remote troubleshooting, installation and commissioning guidance, and technical consultation. Our products come with comprehensive quality warranties: non-human damage within the warranty period is eligible for free after-sales service, and we provide lifelong technical support, effectively reducing customers' equipment maintenance and downtime costs. Our factory is equipped with a full set of precision CNC machining, mirror polishing, and intelligent inspection equipment, strictly controlling product accuracy and sealing performance. Core materials include FFKM, silicon carbide, cemented carbide, graphite, and stainless steel, ensuring wear resistance, high temperature resistance, corrosion resistance, and long service life. Our products are suitable for continuous high-intensity operation of various equipment and can be specifically designed for domestic replacement of imported equipment or sealing upgrades of old equipment. The company strictly follows the ISO 9001 quality management system, implementing a closed-loop quality control process of raw material sampling, in-process inspection, and finished product full inspection. All products come with factory certificates and inspection reports, and we hold multiple utility model patents with complete qualifications, meeting requirements for engineering acceptance, bidding, and export trade. Our products are exported to Russia, Iran, Vietnam, Egypt, Central Asia, and many other countries and regions. Relying on the direct supply advantage of our source factory, with no middleman markup, we provide reliable industrial sealing support to global customers through professional technology, strict quality, and comprehensive service.