Jining dense toughening machinery co., LTD. Is an enterprise specialized in excavator and bulldozer parts, strong technical force, has a number of years of research of mechanical professional talents. Our company mainly is the direct manufacturers, the factory has a modern workshop, excellent technical personnel, advanced production equipment, annual production of komatsu, mountains pushed, reconstruction of machine parts. The main production: all kinds of skeleton oil seal, excavator rubber parts, rubber jacket, rubber plug, sealing ring seal, the company's products through the iso9001:2008 quality management system certification, and strictly enforce the quality standards set by the certification system audit and self-inspection, the production of various accessories meet the national standard. Company regards quality as the core, and constantly improve and perfect quality control inspection supervision level. We produce accessories main supply model for hill pushed bulldozers series: SD42, SD32, SD23, SD22, SD16, SD13, SD08 komatsu excavator series; PC60, PC200, PC210, PC220, PC270, PC300, PC360, PC400 komatsu bulldozers