619 scraper all-hydraulic Caterpillar elevating ScrapersThe Caterpillar 619 scraperContrafed PUblishingNovember 30, 2020February 23, 2022 by Contrafed PUblishingNovember 30, 2020February 23, 2022 Caterpillar’s model 619 motor scraper was the very first of its ‘600’ series machines and introduced quite a few innovations not seen on its previous...
Caterpillar J621 scraperThe Caterpillar J621 elevating scraperContrafed PUblishingMarch 30, 2016September 24, 2021 by Contrafed PUblishingMarch 30, 2016September 24, 2021 ...
