... 15~45Days Material: SteelApplication: For combine-harvester, mining machinery, excavator, bulldozer, scraper machanical, drilling machine, and special machinery, for Komatsu, Caterpillar ... seals and lubrication type No.Heavy equipment(excavator,crane,bulldozer,dump truck,forklift)Pitch,Screw holeKomtsu 1PC40-7Track Link(39L ... 43L,P175)16.5mm54D50Track Link(47L,P175)16.5mm Bulldozer track link