... Samsung,etc Recoil sping track coil spring for excavator and bulldozer Specifications Recoil spring Track coil spring for Komatsu, Caterpillar, ... , Precision wire cutting machines, more than 160 sets in total; 2) Material: iron, carbon steel, stainless steel, brass, copper, alloy ... Hitachi: EX40,EX60,EX150,EX100M,EX100,EX120,EX150, EX200-1-2-3, EX300-1-3- 5, EX400, UH08, UH07Caterpillar: E110B, ...