Our company specializes in producing and selling all kinds of carbon brushes, brush holders, slip rings and constant pressure springs made of stainless-steel, commutators and their spare parts used in all kinds of import and export motors. We also manufacture all kinds of carbon products, such as seal rings, scrapers used in air-pumps, carbon sticks and high purity carbon. These products consist of 5 sorts, more than 120 varieties and 3000 specs. Our products are used in a various industries, such as railway traction, petrochemical, automotive, aerospace, metallurgical, port/harbor, power generation, aerospace, power tool, rubber and battery car.