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china D20 Double Flange Bulldozer Track Rollers Assembly With Heat Treatment

Static Load: 18 tons (matches Komatsu D20’s undercarriage requirements) Dynamic Load: 12 tons (continuous operation) Corrosion Resistance: Salt Spray Test: Passed 1,000 hours (ASTM B117) with no visible rust Coating Adhesion: Cross-cut test (ISO 2409) rating 5B Manufacturing Standards: ISO 9001:2015 certified production 100% dimensional inspection (tolerances: ±0.03 mm for critical surfaces)