---Produce & Offer high-quality excavator undercarriage parts such as Track Rollers (Lower Rollers), Carrier Rollers (Top Roller, Upper Rollers), Idlers, Sprockets, Track Shoe Assembly, Track Link Assembly, etc ---Hyundai: R55, R60, R200, R210, R220, R290, R320, R450, R455, R2800 ---Komatsu: PC40, PC60, PC100, PC120, PC150, PC200, PC210, PC240, PC300, PC340, PC400, ---Hitachi: EX55, ZAX55, EX60, EX100, EX120, EX150, EX200, ZX200, EX300, EX310H-3C, ZX330, EX400, UH07, UH083 ---Caterpilliar: EL200, E200B, E320, E320B, 320C, CAT 325 LN, E330, E330B ---Daewoo: DH55, DH130, DH135, DH220, DH280, DH300, DH330 ---Kato: HD450, HD700, HD770, HD800, HD820, HD850, HD1250, HD1430 ---Kobelco: SK100, SK200, SK220, SK230 ---Sumitomo: SH120, SH200, SH280, LS2800 ---Samsung: SAMSUNG210, Samsung 280 LC, Samsung 350 L ---D65, D155