undercarriage parts for excavator and bulldozer Mainly 20 tons, 30 tons, 40 tonsPC200,PC300,PC400 ETCEX200,EX300,EX400 ETCCAT320,CAT325,CAT330 ETCTrack roller Material:50MN Hardness:HRC55-60 Hardness depth:5-6MM Carrier roller Material:50MN...
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Undercarriage parts, excavator parts, bulldozer parts, diesel engine part...
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