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Grade 8.8 Carbon Steel Value Pack Track Bolts Kit For D6 / D7 Dozers 20T Excavators Perfect

D6 / D7 Dozers Track Bolts Kit

Grade 8.8 Track Bolts Kit

20T Excavators Track Bolts Kit

Place of Origin:

china

Brand Name:

JBXF

Certification:

sio

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Grade 8.8 Carbon Steel Value Pack Track Bolts Kit For D6 / D7 Dozers 20T Excavators Perfect

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D6 / D7 Dozers Track Bolts Kit

Grade 8.8 Track Bolts Kit

20T Excavators Track Bolts Kit

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Product Description

Grade 8.8 Carbon Steel Value Pack Track Bolts Kit For D6 / D7 Dozers 20T Excavators Perfect 0

rafted from 42CrMo chromium-molybdenum alloy steel (GB/T 3077 compliant), processed through vacuum degassing → multidirectional forging → controlled atmosphere quenching → tempering. Achieves Grade 12.9 ultra-high strength (tensile strength ≥1220MPa, yield strength ≥1100MPa). Microstructure features uniform tempered sorbite with impact toughness >100J, delivering 300% longer fatigue life than standard Grade 10.9 bolts.

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