Xiamen Helong Industrial Co., Ltd. has been one of the main manufacturers and exporters of undercarriage parts for excavators and bulldozers in China. Our factory is located in Quanzhou City of Fujian Province and is very near to Xiamen Port, with very convenient transportation.Our products are mainly aftermarket undercarriage parts, such as track rollers, top rollers, sprockets, idler assy, track link assy and track shoes for excavators and bulldozers.