Starting from the basic industries of our company, in addition to having an excellent reputation in the industry for nearly 25 years as an OEM manufacturer of wheels for RB, in recent years, we have been striving and conducting in - depth research. Finally, we have successfully developed top - notch speed - skating wheels. These wheels not only have excellent grip performance but also have excellent endurance performance at the same time. Using a physical formula, we have solved a pair of contradictions that could not be resolved by chemical formulas alone. In the market, through the large - scale distribution of samples, information collection, and continuous improvement over the past year, we can say that our products have won the love of many top - level athletes. Due to our relatively large - scale production equipment, we have developed many types of wheel cores. We can accept OEM orders. If the order quantity is large, we can also produce personalized wheels. We can provide wheels with 608 bearings or 688 bearings. Just as our bearings have abandoned the disadvantages of the intermittent sleeve and the shoe - rack boss, the nano - sleeve for 688 bearings in the market is no longer used. Similarly, we have eliminated the tolerances of wheel side - swing and radial run - out!