... time:20 days MOQ:2 pcs. Caterpillar track chain for D6.Through advanced 3D design(Pro/e), ... Actual Units Produced(Previous Year) Track Shoe, Track Chain, Track Group, Steel Structure Track Shoe 6,000 ... Tons / Month, Track Chain, Track Group 1,900 Pcs / Month, Steel Structure ... 1,800 Tons / Month Track Shoe 18,000 Tons, Track Chain, Track Group 15,000 Pcs, Steel Structure ...