China KOMATSU Track Adjuster Tension Spring For D70(INNER) D80(INNER) D85 D20 PC60-7/PC70-7

# key component of track adjuster

# material 40Cr

# Using high precision mirror polishing

# the thickness of chromeplating 0.25mm,(electroplating 0.50mm then gringding to 0.25mm to ensure surfacae hardness HB700)

# electroplating- grinding-heat treatment-sand blasting

# High strength spring steel

# Number of recoils is the same as original parts

# Roughness as well as original material

# Produce according to the OEM standards

# Taped end spring: stable, OEM need, stonger stress

# Standard spring option

# fully inspected