Boom extension for Caterpillar Original Drawing best quality and best price customized boom Boom ... of buckets are reasonably designed according customer request.6. Application: Caterpillar, Hitachi, Volvo, Komatsu, Kobelco, Kato, Hyundai, Sumitomo, Mitsubishi, JCB, Competitive ... partSurface preparation: sandblastingPainting: primer and coating Excavator Boom Extension for Caterpillar excavator parts