To a large extent,the Boring Machines’s appearance, features, packages, etc. can be the important factors that attract customers. In the process of development of excavator&bulldozer&crane undercarriage spare parts（track chain, track link, track roller, carrier roller,down roller, buttom roller, lower roller, top roller, track shoe, track bolt&nut, track guard, rubber pad, track adjuster, idler, spring, sprock, our designers have been following the latest trend and analyzing customers’ tastes, thereby, making the excavator&bulldozer&crane undercarriage spare parts（track chain, track link, track roller, carrier roller,down roller, buttom roller, lower roller, top roller, track shoe, track bolt&nut, track guard, rubber pad, track adjuster, idler, spring, sprock unique in its structure and design style. As for its features, we try to make it outstanding by adopting high-level raw materials.