Unibear chains start with the high-performance base materials to ensure increased wear life. We use various grades of steel, heat-treated to precise specifications and assembled with accurate press-fits to withstand the requirements of today's powerful, high-production equipment. Protect your investment in equipment and your operation with union® engineering class chains. Our experienced design engineers understand the particular challenges of the market. We offer heavy-duty chains designed specifically to meet the demanding needs of a vast array of industries - all designed to prolong wear life under rigorous operating conditions. We maintain large inventories of strong, reliable, ready-to-ship products as well as a wide variety of components in stock, ready for assembly. You get prompt service and quick turnaround on your orders, reducing your downtime. Motorcycle chian pricefob(shanghai): 428: usd1.126/m 428h:usd1.482/m 520ú¦usd1.667/m 530:usd1.853/m 530h:usd2.084/m 525: usd:1.76/m 525h:usd1.992/m 630:usd2.933/m 25h:usd1.04/m The chains can meet the demands of iso.Ansi, din, bs And jis stands, Our products are good bearablity, low elongation, high acceptable working load. Inner bag to box, 20-25box/carton , then to wood blasket or iron blasket